Thantis, The fogger

If you would draw a card, you may instead choose land or nonland and reveal cards from the top of your library until you reveal a card of the chosen kind. Put that card into your hand and put all other cards revealed this way on the bottom of your library in any order.

You draw three cards and you lose 3 life.

You draw three cards and you lose 3 life.

{T}: Add {C}.

Basic landcycling {1} ({1}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)

All creatures have double strike and attack each combat if able.

{T}: Add {C}.

{3}{G}, {T}, Sacrifice Blighted Woodland: Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.

Whenever a creature attacks you or a planeswalker you control, that creature's controller loses 1 life.

You gain 1 life for each creature on the battlefield. Prevent all combat damage that would be dealt this turn.

The owner of target permanent shuffles it into their library, then reveals the top card of their library. If it's a permanent card, they put it onto the battlefield.

Trample

Whenever Charnelhoard Wurm deals damage to an opponent, you may return target card from your graveyard to your hand.

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

{T}: Add one mana of any color.

Search your library for up to two basic land cards and/or Gate cards, put them onto the battlefield tapped, then shuffle.

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

Prevent all combat damage that would be dealt to players this turn.

Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.

Morbid — At the beginning of each end step, if a creature died this turn, you may draw a card.

Cast this spell only during the declare attackers step and only if you've been attacked this step.

Prevent all damage that would be dealt to you this turn by attacking creatures.

Prevent all combat damage that would be dealt to players this turn.

Reach

Whenever an opponent casts a spell, create a 1/1 green Insect creature token.

Prevent all combat damage that would be dealt to you this turn. Populate. (Create a token that's a copy of a creature token you control.)

{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.

Search your library for a Plains, Island, Swamp, or Mountain card, put it onto the battlefield tapped, then shuffle.

Prevent all combat damage that would be dealt this turn.

{1}{G}, Sacrifice Font of Fertility: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

({T}: Add {G}.)

Choose one —

• All creatures get -1/-1 until end of turn.

• Destroy target enchantment.

• Regenerate each creature you control.

All creatures attack each combat if able.

All creatures block each combat if able.

{T}: Add {C}.

{T}: Add {R} or {G}. Each opponent gains 1 life.

Kicker {2} (You may pay an additional {2} as you cast this spell.)

Search your library for a basic land card, put it onto the battlefield, then shuffle. If this spell was kicked, instead search your library for two basic land cards, put them onto the battlefield, then shuffle.

Draw three cards.

As an additional cost to cast this spell, sacrifice a land.

Search your library for up to two basic land cards, put them onto the battlefield, then shuffle.

Deathtouch

Whenever another nontoken creature dies, you may draw a card.

Prevent all combat damage that would be dealt this turn.

Cycling {3} ({3}, Discard this card: Draw a card.)

Whenever a creature attacks you, its controller loses 1 life.

{T}: Add {C}.

{1}, {T}, Sacrifice Jund Panorama: Search your library for a basic Swamp, Mountain, or Forest card, put it onto the battlefield tapped, then shuffle.

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)

Destroy target artifact or enchantment.

Prevent all combat damage that would be dealt this turn.

Cycling {2} ({2}, Discard this card: Draw a card.)

When Marchesa's Decree enters the battlefield, you become the monarch.

Whenever a creature attacks you or a planeswalker you control, that creature's controller loses 1 life.

Prevent all combat damage that would be dealt this turn.

Flashback {2}{G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Look at the top five cards of your library. For each card, put that card into your graveyard unless you pay 2 life. Then put the rest into your hand.

Transform all Humans. Prevent all combat damage that would be dealt this turn by creatures other than Werewolves and Wolves. (Only double-faced cards can be transformed.)

({T}: Add {R}.)

Myriad Landscape enters the battlefield tapped.

{T}: Add {C}.

{2}, {T}, Sacrifice Myriad Landscape: Search your library for up to two basic land cards that share a land type, put them onto the battlefield tapped, then shuffle.

Return target card from your graveyard to your hand. Put up to one other target card from your graveyard on top of your library. Exile Once and Future.

Adamant — If at least three green mana was spent to cast this spell, instead return those cards to your hand and exile Once and Future.

Converge — You draw X cards and you lose X life, where X is the number of colors of mana spent to cast this spell.

Path of Ancestry enters the battlefield tapped.

{T}: Add one mana of any color in your commander's color identity. When that mana is spent to cast a creature spell that shares a creature type with your commander, scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

Choose one —

• Exile target player's graveyard.

• Destroy target artifact.

• Each creature deals 1 damage to its controller.

Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Scry 2, then draw two cards. You lose 2 life.

Return X cards at random from your graveyard to your hand. Exile Reap the Past.

Return target card from your graveyard to your hand.

Prevent all combat damage that would be dealt this turn. You gain 1 life for each attacking creature.

Choose one —

• Draw cards equal to the greatest power among non-Human creatures you control.

• Non-Human creatures you control get +3/+3 until end of turn.

Whenever a creature attacks you or a planeswalker you control, that creature's controller loses 1 life and you gain 1 life.

Prevent all combat damage that would be dealt this turn.

Vigilance, reach

Ruric Thar, the Unbowed attacks each combat if able.

Whenever a player casts a noncreature spell, Ruric Thar deals 6 damage to that player.

Sacrifice Sakura-Tribe Elder: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Savage Lands enters the battlefield tapped.

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

Choose two target players. Each of them searches their library for a card, then shuffles and puts that card on top.

Search your library for a basic land card, put it onto the battlefield, then shuffle.

Suspend 2—{G} (Rather than cast this card from your hand, you may pay {G} and exile it with two time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, cast it without paying its mana cost.)

You may discard a Forest card rather than pay this spell's mana cost.

Prevent all combat damage that would be dealt by unblocked creatures this turn.

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

Draw cards equal to the power of target creature you control.

Tap all blocking creatures. Prevent all combat damage that would be dealt this turn. Each attacking creature and each blocking creature doesn't untap during its controller's next untap step.

Sacrifice Spore Frog: Prevent all combat damage that would be dealt this turn.

{T}: Add {C}.

{T}, Tap an untapped creature you control: Add one mana of any color.

({T}: Add {B}.)

Each other player discards a card. You draw a card for each card discarded this way.

Destroy target creature. It can't be regenerated.

{T}, Sacrifice Terramorphic Expanse: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Prevent all combat damage that would be dealt by creatures other than target creature this turn.

Vigilance, reach

All creatures attack each combat if able.

Whenever a creature attacks you or a planeswalker you control, put a +1/+1 counter on Thantis, the Warweaver.

Search your library for up to X basic land cards, where X is the greatest power among creatures you control. Put those cards onto the battlefield tapped, then shuffle.

As an additional cost to cast this spell, you may pay {2}{R}.

Prevent all combat damage that would be dealt this turn. If this spell's additional cost was paid, this effect doesn't affect combat damage that would be dealt by red creatures.

Vivid Crag enters the battlefield tapped with two charge counters on it.

{T}: Add {R}.

{T}, Remove a charge counter from Vivid Crag: Add one mana of any color.

Vivid Grove enters the battlefield tapped with two charge counters on it.

{T}: Add {G}.

{T}, Remove a charge counter from Vivid Grove: Add one mana of any color.

Trample

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

Whenever an opponent taps a land for mana, that land doesn't untap during its controller's next untap step.

Whenever an opponent taps a land for mana, tap all lands that player controls.

If a creature an opponent controls attacks, all creatures that opponent controls attack if able.

Flying

All creatures attack each combat if able.

{1}{R}: Attacking creatures get +1/+0 until end of turn.

At the beginning of your end step, untap all lands you control.

Prevent all combat damage that would be dealt this turn.

Ferocious — If you control a creature with power 4 or greater, instead prevent all combat damage that would be dealt this turn by creatures your opponents control.