Saboteur!!

Whenever you cast a spell, you gain 1 life for each spell you've cast this turn.

Pay 50 life: Aetherflux Reservoir deals 50 damage to any target.

Counter target spell. Its controller may draw up to two cards at the beginning of the next turn's upkeep.

You draw a card at the beginning of the next turn's upkeep.

{T}: Add {W}.

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

Protection from creatures

Flying

{T}: Add one mana of any color.

At the beginning of your upkeep, you lose 1 life and create a 1/1 black Faerie Rogue creature token with flying.

Equipped creature gets +2/+0.

Whenever equipped creature deals combat damage to a player, create a token that's a copy of Bloodforged Battle-Axe.

Equip {2}

Blooming Marsh enters the battlefield tapped unless you control two or fewer other lands.

{T}: Add {B} or {G}.

Target creature you control gets +2/+2 and gains hexproof until end of turn.

Botanical Sanctum enters the battlefield tapped unless you control two or fewer other lands.

{T}: Add {G} or {U}.

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

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

Changeling (This card is every creature type.)

Changeling Outcast can't block and can't be blocked.

Imprint — When Chrome Mox enters the battlefield, you may exile a nonartifact, nonland card from your hand.

{T}: Add one mana of any of the exiled card's colors.

Whenever City of Brass becomes tapped, it deals 1 damage to you.

{T}: Add one mana of any color.

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

When Dowsing Dagger enters the battlefield, target opponent creates two 0/2 green Plant creature tokens with defender.

Equipped creature gets +2/+1.

Whenever equipped creature deals combat damage to a player, you may transform Dowsing Dagger.

Equip {2}

Flying, first strike

Whenever Drana, Liberator of Malakir deals combat damage to a player, put a +1/+1 counter on each attacking creature you control.

Whenever a creature you control attacks, put a charge counter on Druids' Repository.

Remove a charge counter from Druids' Repository: Add one mana of any color.

Destroy all creatures with power 3 or greater.

Exile any number of target creatures you control. Return those cards to the battlefield under their owner's control at the beginning of the next end step.

{2}, {T}: You gain 5 life. Shuffle Elixir of Immortality and your graveyard into their owner's library.

{T}: Add {B}. Elves of Deep Shadow deals 1 damage to you.

Target creature you control gains protection from the color of your choice until end of turn.

Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)

Equipped creature gets +1/+1 for each card in your hand.

Equip {2}

When Eternal Witness enters the battlefield, you may return target card from your graveyard to your hand.

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

You may play an additional land on each of your turns.

Flying

When Faerie Miscreant enters the battlefield, if you control another creature named Faerie Miscreant, draw a card.

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

({T}: Add {G}.)

Whenever a player casts a spell, you may put a +1/+1 counter on Forgotten Ancient.

At the beginning of your upkeep, you may move any number of +1/+1 counters from Forgotten Ancient onto other creatures.

{T}: Add {G} for each creature you control.

Gemstone Mine enters the battlefield with three mining counters on it.

{T}, Remove a mining counter from Gemstone Mine: Add one mana of any color. If there are no mining counters on Gemstone Mine, sacrifice it.

Exile each creature you control. Return those cards to the battlefield under their owner's control at the beginning of the next end step.

({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.

When Growing Rites of Itlimoc enters the battlefield, look at the top four cards of your library. You may reveal a creature card from among them and put it into your hand. Put the rest on the bottom of your library in any order.

At the beginning of your end step, if you control four or more creatures, transform Growing Rites of Itlimoc.

Gudul Lurker can't be blocked.

Megamorph {U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.)

({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.

Flying, lifelink

Permanents you control gain hexproof and indestructible until end of turn.

Flying

Sacrifice Hope of Ghirapur: Until your next turn, target player who was dealt combat damage by Hope of Ghirapur this turn can't cast noncreature spells.

Bestow {5}{U}{U} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)

Flying

You control enchanted creature.

Enchanted creature gets +1/+1 and has flying.

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)

{2}{U}{B}: Each unblocked creature has base power and toughness 4/1 until end of turn.

Each player sacrifices a creature.

({T}: Add {U}.)

Flying

Sacrifice Judge's Familiar: Counter target instant or sorcery spell unless its controller pays {1}.

If you have no land cards in hand, you may reveal your hand rather than pay this spell's mana cost.

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

{T}, Sacrifice Lotus Petal: Add one mana of any color.

{T}, Pay 1 life: Add one mana of any color.

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

Flying

Whenever another Spirit enters the battlefield under your control, Mausoleum Wanderer gets +1/+1 until end of turn.

Sacrifice Mausoleum Wanderer: Counter target instant or sorcery spell unless its controller pays {X}, where X is Mausoleum Wanderer's power.

Creatures you control get +1/+1.

Whenever you tap a land for mana, add one mana of any type that land produced.

Mist-Cloaked Herald can't be blocked.

Lifelink, protection from mana value 3 or greater

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

{T}: Target creature you control gains protection from the color of your choice until end of turn.

If Mox Diamond would enter the battlefield, you may discard a land card instead. If you do, put Mox Diamond onto the battlefield. If you don't, put it into its owner's graveyard.

{T}: Add one mana of any color.

Destroy target artifact or enchantment. Its controller gains 4 life.

Whenever one or more creatures you control deal combat damage to a player, tap all lands that player controls and untap all lands you control.

Flying

Whenever a creature you control deals combat damage to a player, put that many +1/+1 counters on it.

Flying

Nightshade Stinger can't block.

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)

{T}: Add {G}, {W}, or {U}.

Prowl {5}{U} (You may cast this for its prowl cost if you dealt combat damage to a player this turn with a Rogue.)

Create X 1/1 black Faerie Rogue creature tokens with flying, where X is the damage dealt to your opponents this turn. If this spell's prowl cost was paid, take an extra turn after this one.

({G/P} can be paid with either {G} or 2 life.)

Put target card from a graveyard on top of its owner's library.

Whenever one or more creatures you control deal combat damage to a player, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.")

{1}{G}, Exile a creature card from your graveyard: Investigate. You gain 2 life.

Flying

Each other Rogue creature you control enters the battlefield with an additional +1/+1 counter on it.

Whenever a creature you control with a +1/+1 counter on it deals combat damage to a player, that player discards a card.

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

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

Exile target creature. Its controller may search their library for a basic land card, put that card onto the battlefield tapped, then shuffle.

({T}: Add {W}.)

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

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

{T}: You may put a land card from your hand onto the battlefield.

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

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

Seachrome Coast enters the battlefield tapped unless you control two or fewer other lands.

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

Untap all permanents you control during each other player's untap step.

Flying

Sacrifice Selfless Spirit: Creatures you control gain indestructible until end of turn.

Each player chooses any number of creatures they control with total power 4 or less, then sacrifices all other creatures they control.

Slither Blade can't be blocked.

Shadow (This creature can block or be blocked by only creatures with shadow.)

Flash (You may cast this spell any time you could cast an instant.)

Flying

{3}{U}: Draw a card.

{T}: Add {C}. Put a point counter on Strixhaven Stadium.

Whenever a creature deals combat damage to you, remove a point counter from Strixhaven Stadium.

Whenever a creature you control deals combat damage to an opponent, put a point counter on Strixhaven Stadium. Then if it has ten or more point counters on it, remove them all and that player loses the game.

Kicker {G} and/or {W} (You may pay an additional {G} and/or {W} as you cast this spell.)

When Stronghold Arena enters the battlefield, you gain 3 life for each time it was kicked.

Whenever one or more creatures you control deal combat damage to a player, you may reveal the top card of your library and put it into your hand. If you do, you lose life equal to its mana value.

({T}: Add {B}.)

Exile target creature. Its controller gains life equal to its power.

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.

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

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

{4}: Scry 1, then reveal the top card of your library. If it's a land card, put it onto the battlefield tapped. Otherwise, draw a card.

Partner (You can have two commanders if both have partner.)

At the beginning of your end step, each opponent loses life equal to the number of tapped creatures you control.

Flying

When Topplegeist enters the battlefield, tap target creature an opponent controls.

Delirium — At the beginning of each opponent's upkeep, if there are four or more card types among cards in your graveyard, tap target creature that player controls.

Tormented Soul can't block and can't be blocked.

As an additional cost to cast this spell, pay X life.

All creatures get -X/-X until end of turn.

Activated abilities of creatures you control cost {2} less to activate. This effect can't reduce the mana in that cost to less than one mana.

Triton Shorestalker can't be blocked.

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

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

Lifelink

At the beginning of your postcombat main phase, you may pay X life, where X is the number of opponents that were dealt combat damage this turn. If you do, draw X cards.

Partner (You can have two commanders if both have partner.)

Whenever equipped creature deals combat damage, put two charge counters on Umezawa's Jitte.

Remove a charge counter from Umezawa's Jitte: Choose one —

• Equipped creature gets +2/+2 until end of turn.

• Target creature gets -1/-1 until end of turn.

• You gain 2 life.

Equip {2}

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

Skulk (This creature can't be blocked by creatures with greater power.)

Lifelink (Damage dealt by this creature also causes you to gain that much life.)

({B/P} can be paid with either {B} or 2 life.)

Flying

Lifelink (Damage dealt by this creature also causes you to gain that much life.)

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

Kicker {G} (You may pay an additional {G} as you cast this spell.)

Target creature can't be the target of spells or abilities your opponents control this turn. If this spell was kicked, that creature gets +4/+4 until end of turn.

({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.