Breyafriends

When Academy Rector dies, you may exile it. If you do, search your library for an enchantment card, put that card onto the battlefield, then shuffle.

[+1]: Until end of turn, up to one target creature gets +1/+1 and gains first strike, vigilance, and lifelink.

[−2]: Put a +1/+1 counter on each creature you control and a loyalty counter on each other planeswalker you control.

[−7]: You get an emblem with "If a source would deal damage to you or a planeswalker you control, prevent all but 1 of that damage."

If an effect would create one or more tokens under your control, it creates twice that many of those tokens instead.

{T}, Pay 1 life, Sacrifice Arid Mesa: Search your library for a Mountain or Plains card, put it onto the battlefield, then shuffle.

Choose two —

• Destroy all artifacts.

• Destroy all enchantments.

• Destroy all creatures with mana value 3 or less.

• Destroy all creatures with mana value 4 or greater.

{1}, {T}: Add {W}{U}.

({T}: Add {B} or {R}.)

({T}: Add {B} or {R}.)

As Blood Crypt enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

{T}, Pay 1 life, Sacrifice Bloodstained Mire: Search your library for a Swamp or Mountain card, put it onto the battlefield, then shuffle.

{1}, {T}: Add {R}{W}.

Flying

Whenever Brago, King Eternal deals combat damage to a player, exile any number of target nonland permanents you control, then return those cards to the battlefield under their owner's control.

When Breya, Etherium Shaper enters the battlefield, create two 1/1 blue Thopter artifact creature tokens with flying.

{2}, Sacrifice two artifacts: Choose one —

• Breya deals 3 damage to target player or planeswalker.

• Target creature gets -4/-4 until end of turn.

• You gain 5 life.

[+1]: Exile the top card of your library. You may cast that card. If you don't, Chandra, Torch of Defiance deals 2 damage to each opponent.

[+1]: Add {R}{R}.

[−3]: Chandra, Torch of Defiance deals 4 damage to target creature.

[−7]: You get an emblem with "Whenever you cast a spell, this emblem deals 5 damage to any target."

Lands you control have "{T}: Add one mana of any color."

{T}: Add one mana of any color.

Tap two untapped artifacts you control: Untap target artifact.

Buyback {3} (You may pay an additional {3} as you cast this spell. If you do, put this card into your hand as it resolves.)

Choose a counter on target permanent or suspended card. Remove that counter from that permanent or card or put another of those counters on it.

{T}: Add one mana of any color.

{T}: Put a charge counter on Coalition Relic.

At the beginning of your precombat main phase, remove all charge counters from Coalition Relic. Add one mana of any color for each charge counter removed this way.

{T}: Add one mana of any color in your commander's color identity.

When Contagion Engine enters the battlefield, put a -1/-1 counter on each creature target player controls.

{4}, {T}: Proliferate, then proliferate again. (Choose any number of permanents and/or players, then give each another counter of each kind already there. Then do it again.)

[+1]: Target player draws two cards, then discards two cards.

[−2]: Gain control of target artifact.

[−6]: You get an emblem with "Whenever you cast a spell that targets one or more permanents, gain control of those permanents."

Destroy all creatures. They can't be regenerated.

[+1]: Create a 1/1 colorless Construct artifact creature token with defender.

[−1]: You may sacrifice an artifact. If you do, destroy target artifact or creature.

[−6]: Choose target artifact card in a graveyard or artifact on the battlefield. Create three tokens that are copies of it.

[+2]: Discard up to two cards, then draw that many cards.

[−2]: Sacrifice an artifact. If you do, return target artifact card from your graveyard to the battlefield.

[−10]: You get an emblem with "Whenever an artifact is put into your graveyard from the battlefield, return that card to the battlefield at the beginning of the next end step."

Daretti, Scrap Savant can be your commander.

When Deepglow Skate enters the battlefield, double the number of each kind of counter on any number of target permanents.

Search your library for a card, put that card into your hand, then shuffle.

{1}, {T}: Add {U}{B}.

[+1]: Create a 1/1 white Soldier creature token.

[+1]: Target creature gets +3/+3 and gains flying until end of turn.

[−8]: You get an emblem with "Artifacts, creatures, enchantments, and lands you control have indestructible."

[+1]: Create three 1/1 white Soldier creature tokens.

[−3]: Destroy all creatures with power 4 or greater.

[−7]: You get an emblem with "Creatures you control get +2/+2 and have flying."

Search your library for an artifact or enchantment card, reveal it, then shuffle and put that card on top.

{T}: Add one mana of any color that a land an opponent controls could produce.

{T}, Pay 1 life, Sacrifice Flooded Strand: Search your library for a Plains or Island card, put it onto the battlefield, then shuffle.

[+1]: Until end of turn, Gideon, Ally of Zendikar becomes a 5/5 Human Soldier Ally creature with indestructible that's still a planeswalker. Prevent all damage that would be dealt to him this turn.

[0]: Create a 2/2 white Knight Ally creature token.

[−4]: You get an emblem with "Creatures you control get +1/+1."

If an opponent controls more lands than you, search your library for up to three Plains cards, reveal them, put them into your hand, then shuffle.

Enchant creature

When enchanted creature dies, return that card to the battlefield under its owner's control. Return Gift of Immortality to the battlefield attached to that creature at the beginning of the next end step.

{T}: Add three mana of any one color.

{T}: Choose target artifact a player controls and target artifact card in that player's graveyard. If both targets are still legal as this ability resolves, that player simultaneously sacrifices the artifact and returns the artifact card to the battlefield.

({T}: Add {W} or {B}.)

As Godless Shrine enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

({T}: Add {W} or {U}.)

As Hallowed Fountain enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

Whenever you cast a spell, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

({T}: Add {U}.)

{1}, {T}: Add {U}{R}.

[+1]: Until your next turn, whenever a creature an opponent controls attacks, it gets -1/-0 until end of turn.

[−2]: Reveal the top three cards of your library. An opponent separates those cards into two piles. Put one pile into your hand and the other on the bottom of your library in any order.

[−8]: For each player, search that player's library for a nonland card and exile it, then that player shuffles. You may cast those cards without paying their mana costs.

When Knight-Captain of Eos enters the battlefield, create two 1/1 white Soldier creature tokens.

{W}, Sacrifice a Soldier: Prevent all combat damage that would be dealt this turn.

[+1]: Search your library for a Swamp card, reveal it, put it into your hand, then shuffle.

[−3]: Target creature gets +X/+X or -X/-X until end of turn, where X is the number of Swamps you control.

[−6]: You get an emblem with "Swamps you control have '{T}: Add {B}{B}{B}{B}.'"

[+1]: Target player discards a card.

[−2]: Search your library for a card, then shuffle and put that card on top.

[−8]: Put all creature cards from all graveyards onto the battlefield under your control.

At the beginning of your upkeep, flip a coin. If you lose the flip, Mana Crypt deals 3 damage to you.

{T}: Add {C}{C}.

{T}, Pay 1 life, Sacrifice Marsh Flats: Search your library for a Plains or Swamp card, put it onto the battlefield, then shuffle.

{U}, {T}, Return an artifact you control to its owner's hand: You may put an artifact card from your hand onto the battlefield.

{T}: Untap target attacking creature. Prevent all combat damage that would be dealt to and dealt by that creature this turn.

{T}, Pay 1 life, Sacrifice Misty Rainforest: Search your library for a Forest or Island card, put it onto the battlefield, then shuffle.

({T}: Add {R}.)

When Mystic Barrier enters the battlefield or at the beginning of your upkeep, choose left or right.

Each player may attack only the nearest opponent in the last chosen direction and planeswalkers controlled by that opponent.

[+2]: You may discard a card. If you do, draw a card.

[−2]: Exile target enchantment, tapped artifact, or tapped creature.

[−8]: Search your library for an artifact or creature card, put it onto the battlefield, then shuffle. It gains haste. Return it to your hand at the beginning of the next end step.

[+2]: Create a 1/1 white Kor Soldier creature token. You may attach an Equipment you control to it.

[−2]: You may put an Equipment card from your hand or graveyard onto the battlefield.

[−10]: Create a colorless Equipment artifact token named Stoneforged Blade. It has indestructible, "Equipped creature gets +5/+5 and has double strike," and equip {0}.

Nahiri, the Lithomancer can be your commander.

When Oath of Gideon enters the battlefield, create two 1/1 white Kor Ally creature tokens.

Each planeswalker you control enters the battlefield with an additional loyalty counter on it.

At the beginning of each upkeep, if you control no Snakes, create a 1/1 black Snake creature token with deathtouch.

At the beginning of your upkeep, each player may put two +1/+1 counters on a creature they control. If a player does, creatures that player controls can't attack you or planeswalkers you control until your next turn.

{1}, {T}: Add {W}{B}.

If an artifact or creature entering the battlefield causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.

At the beginning of your upkeep, sacrifice Peacekeeper unless you pay {1}{W}.

Creatures can't attack.

At the beginning of your upkeep, you draw a card and you lose 1 life.

({T}: Add {W}.)

({T}: Add {R} or {W}.)

{T}, Pay 1 life, Sacrifice Polluted Delta: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle.

Prismatic Geoscope enters the battlefield tapped.

Domain — {T}: Add X mana in any combination of colors, where X is the number of basic land types among lands you control.

{1}, {T}: Add {B}{R}.

[+1]: Tap target permanent, then untap another target permanent.

[−2]: Ral Zarek deals 3 damage to any target.

[−7]: Flip five coins. Take an extra turn after this one for each coin that comes up heads.

{T}: Add one mana of any type that a land you control could produce.

Whenever you activate an ability, if it isn't a mana ability, you may pay {2}. If you do, copy that ability. You may choose new targets for the copy.

({T}: Add {R} or {W}.)

As Sacred Foundry enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

[+1]: Scry 1. Saheeli Rai deals 1 damage to each opponent.

[−2]: Create a token that's a copy of target artifact or creature you control, except it's an artifact in addition to its other types. That token gains haste. Exile it at the beginning of the next end step.

[−7]: Search your library for up to three artifact cards with different names, put them onto the battlefield, then shuffle.

[+1]: Until end of turn, Sarkhan, the Dragonspeaker becomes a legendary 4/4 red Dragon creature with flying, indestructible, and haste. (He doesn't lose loyalty while he's not a planeswalker.)

[−3]: Sarkhan, the Dragonspeaker deals 4 damage to target creature.

[−6]: You get an emblem with "At the beginning of your draw step, draw two additional cards" and "At the beginning of your end step, discard your hand."

Take an extra turn after this one. Skip the untap step of that turn.

{T}, Pay 1 life, Sacrifice Scalding Tarn: Search your library for an Island or Mountain card, put it onto the battlefield, then shuffle.

({T}: Add {W} or {B}.)

{T}: Add {C}{C}.

[+1]: Create a 1/1 black Vampire creature token with lifelink.

[−2]: You get an emblem with "Creatures you control get +1/+0."

[−6]: Destroy up to three target creatures and/or other planeswalkers. Return each card put into a graveyard this way to the battlefield under your control.

({T}: Add {U} or {R}.)

As Steam Vents enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

({T}: Add {B}.)

[+1]: Tap target permanent. It doesn't untap during its controller's next untap step.

[−2]: Draw a card for each tapped creature target player controls.

[−8]: You get an emblem with "You have no maximum hand size" and "Whenever a card is put into your graveyard from anywhere, you may return it to your hand."

Until your next turn, your life total can't change and you gain protection from everything. All permanents you control phase out. (While they're phased out, they're treated as though they don't exist. They phase in before you untap during your untap step.)

Exile Teferi's Protection.

[+1]: Look at the top two cards of your library. Put one of them into your hand and the other on the bottom of your library.

[−1]: Untap up to four target permanents.

[−10]: You get an emblem with "You may activate loyalty abilities of planeswalkers you control on any player's turn any time you could cast an instant."

Teferi, Temporal Archmage can be your commander.

Put all creatures on the bottom of their owners' libraries.

Miracle {W} (You may cast this card for its miracle cost when you draw it if it's the first card you drew this turn.)

[+1]: Untap up to two target artifacts.

[−X]: Search your library for an artifact card with mana value X or less, put it onto the battlefield, then shuffle.

[−5]: Artifacts you control become artifact creatures with base power and toughness 5/5 until end of turn.

At the beginning of your end step, if you didn't activate a loyalty ability of a planeswalker this turn, you lose 2 life.

{4}, {T}: For each planeswalker you control, you may activate one of its loyalty abilities once this turn as though none of its loyalty abilities have been activated this turn.

Flying

Whenever Thrummingbird deals combat damage to a player, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Target player takes an extra turn after this one.

For each player, you choose from among the permanents that player controls an artifact, a creature, an enchantment, and a planeswalker. Then each player sacrifices all other nonland permanents they control.

({T}: Add {W} or {U}.)

[+2]: Ugin, the Spirit Dragon deals 3 damage to any target.

[−X]: Exile each permanent with mana value X or less that's one or more colors.

[−10]: You gain 7 life, draw seven cards, then put up to seven permanent cards from your hand onto the battlefield.

({T}: Add {U} or {B}.)

Each land is a Swamp in addition to its other land types.

Search your library for a card, then shuffle and put that card on top. You lose 2 life.

Destroy target artifact you don't control.

Overload {4}{R} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

[+2]: Exile target permanent you own. Return it to the battlefield under your control at the beginning of the next end step.

[−1]: Creatures can't be blocked this turn.

[−8]: You get an emblem with "Whenever you cast a spell, exile target permanent."

{T}, Pay 1 life, Sacrifice Verdant Catacombs: Search your library for a Swamp or Forest card, put it onto the battlefield, then shuffle.

({T}: Add {U} or {R}.)

({T}: Add {U} or {B}.)

As Watery Grave enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

{T}, Pay 1 life, Sacrifice Windswept Heath: Search your library for a Forest or Plains card, put it onto the battlefield, then shuffle.