Cards/Ikoria Lair of Behemoths

Adaptive Shimmerer enters the battlefield with three +1/+1 counters on it.

At the beginning of your end step, you gain 1 life for each creature you control with vigilance.

: Almighty Brushwagg gets +3/+3 until end of turn.

Whenever this creature mutates, tap up to X target creatures, where X is the number of times this creature has mutated. Those creatures don't untap during their controller's next untap step.

Whenever this creature mutates, exile cards from the top of your library until you exile X permanent cards, where X is the number of times this creature has mutated. Put those permanent cards onto the battlefield.

Cycling (, Discard this card: Draw a card.)
When you cycle Avian Oddity, put a flying counter on target creature you control.

Cycling (, Discard this card: Draw a card.)

Whenever a creature you control dies, each opponent loses 1 life and you gain 1 life.

Whenever you cast a noncreature spell, untap Blisterspit Gremlin.

When Blitz Leech enters the battlefield, target creature an opponent controls gets -2/-2 until end of turn. Remove all counters from that creature.

When Bloodfell Caves enters the battlefield, you gain 1 life.
: Add or .

When Blossoming Sands enters the battlefield, you gain 1 life.
: Add or .

, : Draw a card. Activate this ability only if you control a creature with power 4 or greater.

Whenever this creature mutates, return target permanent card from your graveyard to your hand.

Cycling (, Discard this card: Draw a card.)

Trample
You may cast Brokkos, Apex of Forever from your graveyard using its mutate ability.

Enchant creature
When Capture Sphere enters the battlefield, tap enchanted creature.
Enchanted creature doesn't untap during its controller's untap step.

Draw three cards.

Menace (This creature can't be blocked except by two or more creatures.)
Whenever this creature mutates, each opponent discards a card.

Target player draws X cards. Channeled Force deals X damage to up to one target creature or planeswalker.

Charge of the Forever-Beast deals damage to target creature or planeswalker equal to the revealed card's power.

At the beginning of your upkeep, if your opponents control no permanents with bounty counters on them, put a bounty counter on target creature or planeswalker an opponent controls.
Whenever a permanent an opponent controls with a bounty counter on it dies, you gain 3 life and draw a card.

Whenever this creature mutates, each opponent sacrifices a creature.

Reach
Whenever this creature mutates, you may discard a card. If you do, draw a card.

When Colossification enters the battlefield, tap enchanted creature.
Enchanted creature gets +20/+20.

Cycling (, Discard this card: Draw a card.)

Lifelink
Whenever this creature mutates, create two 1/1 white Cat creature tokens with lifelink.

Spells with flash you cast cost less to cast and can't be countered.

Enchanted creature gets -2/-2.

, Sacrifice Death's Oasis: You gain life equal to the greatest converted mana cost among creatures you control.

Flash
Flying
Whenever this creature mutates, destroy target creature or planeswalker an opponent controls.

When Dismal Backwater enters the battlefield, you gain 1 life.
: Add or .

Cycling (, Discard this card: Draw a card.)

Cycling (, Discard this card: Draw a card.)

Flying
Whenever this creature mutates, draw a card.

, : Put a +1/+1 counter on each creature you control with lifelink.

Cycling (, Discard this card: Draw a card.)

Flying
Whenever this creature mutates, create a red artifact token named Feather with ", Sacrifice Feather: Return target Phoenix card from your graveyard to the battlefield tapped."

When Excavation Mole enters the battlefield, put the top three cards of your library into your graveyard.

When Farfinder enters the battlefield, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle your library.

, Remove a +1/+1 counter from Fertilid: Target player searches their library for a basic land card, puts it onto the battlefield tapped, then shuffles their library.

, , Sacrifice another creature: Search your library for a creature card with converted mana cost X or less, put it onto the battlefield, then shuffle your library. Activate this ability only any time you could cast a sorcery.

• Target Human creature you control gets +1/+1 and gains indestructible until end of turn.
• Target non-Human creature you control gets +1/+1 and gains indestructible until end of turn.

Cycling (, Discard this card: Draw a card.)

Enchanted land has ": Target creature gains trample and haste until end of turn."
Cycling (, Discard this card: Draw a card.)

, : Put a +1/+1 counter on each creature you control with menace.

Creatures you control with vigilance have ", : Tap target creature."

Cycling (, Discard this card: Draw a card.)

Reach, trample
Whenever this creature mutates, destroy target artifact or enchantment an opponent controls.

Whenever General Kudro of Drannith or another Human enters the battlefield under your control, exile target card from an opponent's graveyard.
, Sacrifice two Humans: Destroy target creature with power 4 or greater.

: Exile target card from a graveyard. If it was a creature card, create a 1/1 white Human Soldier creature token.

: Untap Glimmerbell.

Reach
Whenever this creature mutates, put two +1/+1 counters on it.

Cycling (, Discard this card: Draw a card.)

Cycling (, Discard this card: Draw a card.)

Return target nonland permanent you don't control to its owner's hand.
Draw a card.

When Gyruda enters the battlefield, each player puts the top four cards of their library into their graveyard. Put a creature card with an even converted mana cost from among those cards onto the battlefield under your control.

Cycling (, Discard this card: Draw a card.)

• Destroy target creature with no counters on it.
• Remove up to three counters from target creature.

, : Put a +1/+1 counter on each creature you control with trample.

When Hunted Nightmare enters the battlefield, target opponent puts a deathtouch counter on a creature they control.

Whenever this creature mutates, other creatures you control get +X/+X until end of turn, where X is the number of times this creature has mutated.

Flying, trample
Whenever this creature mutates, exile cards from the top of your library until you exile a nonland permanent card. Put that card onto the battlefield or into your hand.

Cycling (, Discard this card: Draw a card.)

Cycling (, Discard this card: Draw a card.)

Indatha Triome enters the battlefield tapped.
Cycling (, Discard this card: Draw a card.)

Deathtouch
Whenever this creature mutates, each opponent loses X life and you gain X life, where X is the number of times this creature has mutated.

: Add . This mana can't be spent to pay generic mana costs.

Creatures you control with flying have "Spells your opponents cast that target this creature cost more to cast."

When Jungle Hollow enters the battlefield, you gain 1 life.
: Add or .

Vigilance
Each other creature you control that's a Cat, Elemental, Nightmare, Dinosaur, or Beast gets +1/+1 and has vigilance.

, : Put a +1/+1 counter on each creature you control with vigilance.

Draw a card.

When Keruga, the Macrosage enters the battlefield, draw a card for each other permanent you control with converted mana cost 3 or greater.

Cycling (, Discard this card: Draw a card.)

Ketria Triome enters the battlefield tapped.
Cycling (, Discard this card: Draw a card.)

: Look at the top five cards of your library. You may put a non-Human creature card from among them onto the battlefield. Put the rest on the bottom of your library in a random order.

Whenever Kogla attacks, destroy target artifact or enchantment defending player controls.
: Return target Human you control to its owner's hand. Kogla gains indestructible until end of turn.

Whenever a creature you control with menace becomes blocked, defending player sacrifices a creature blocking it.
: Creatures you control with menace get +1/+0 until end of turn.

Cycling (, Discard this card: Draw a card.)

Lavabrink Venturer has protection from each converted mana cost of the chosen value.

• You gain 4 life.
• Destroy target enchantment.
• Put a +1/+1 counter on target creature.

Whenever this creature mutates, return target instant or sorcery card from your graveyard to your hand.

−2: Exile target creature you control, then reveal cards from the top of your library until you reveal a creature card with higher converted mana cost. Put that card onto the battlefield and the rest on the bottom of your library in a random order.
−7: Each creature you control deals damage equal to its power to each opponent.

Whenever a creature you control without flying dies, return it to the battlefield under its owner's control with a flying counter on it.

When Lurking Deadeye enters the battlefield, destroy target creature that was dealt damage this turn.

Lifelink
During each of your turns, you may cast one permanent spell with converted mana cost 2 or less from your graveyard.

Flash
When Lutri, the Spellchaser enters the battlefield, if you cast it, copy target instant or sorcery spell you control. You may choose new targets for the copy.

Vigilance
Whenever this creature mutates, you gain 4 life.

Cycling (, Discard this card: Draw a card.)

Cycling (, Discard this card: Draw a card.)

Whenever this creature mutates, search your library for a basic land card, put it onto the battlefield tapped, then shuffle your library.

Whenever Momentum Rumbler attacks, if it has first strike, it gains double strike until end of turn.

Cycling (, Discard this card: Draw a card.)

As an additional cost to cast this spell, sacrifice a creature.
Destroy target creature.

Enchant creature
Enchanted creature gets -2/-0 and loses all abilities. (Mutating onto the creature won't give it new abilities. It can gain abilities in other ways.)

Return up to two permanent cards from your graveyard to your hand.

−2: Draw a card, then you may discard a card. When you discard a nonland card this way, Narset of the Ancient Way deals damage equal to that card's converted mana cost to target creature or planeswalker.
−6: You get an emblem with "Whenever you cast a noncreature spell, this emblem deals 2 damage to any target."

Whenever this creature mutates, return target creature card with converted mana cost 3 or less from your graveyard to the battlefield.

Deathtouch, lifelink
Whenever this creature mutates, return any number of target creature cards with total power 10 or less from your graveyard to the battlefield.

Cycling (, Discard this card: Draw a card.)

If a source you control with an odd converted mana cost would deal damage to a permanent or player, it deals double that damage to that permanent or player instead.

Draw two cards.

Remove eight foreshadow counters from Ominous Seas: Create an 8/8 blue Kraken creature token.
Cycling (, Discard this card: Draw a card.)

Enchanted creature can't attack or block.

, : Look at the top card of your library. If it's a land card, you may put it onto the battlefield. If you don't put the card onto the battlefield, put it into your hand.

When Patagia Tiger enters the battlefield, target Human you control gets +2/+2 until end of turn.

Whenever you cast a creature spell, if it has mutate, draw a card, then discard a card.

: This creature deals X damage to any target, where X is the number of times this creature has mutated.

Flash
Whenever this creature mutates, you may return target creature an opponent controls to its owner's hand.

Whenever you cycle a card, Prickly Marmoset gets +2/+0 until end of turn.

Creatures you control with trample have "You may have this creature assign its combat damage as though it weren't blocked."

Whenever you cast a noncreature spell, put a +1/+1 counter on Pyroceratops.

Whenever one or more creatures you control with trample deal combat damage to a player, create an X/X green Dinosaur Beast creature token with trample, where X is the amount of damage those creatures dealt to that player.

Cycling (, Discard this card: Draw a card.)

Cycling (, Discard this card: Draw a card.)

Raugrin Triome enters the battlefield tapped.
Cycling (, Discard this card: Draw a card.)

Cycling (, Discard this card: Draw a card.)

Whenever this creature mutates, other creatures you control get +2/+1 until end of turn.

Whenever you discard one or more cards for the first time each turn, draw that many cards.

Cycling (, Discard this card: Draw a card.)

When Rugged Highlands enters the battlefield, you gain 1 life.
: Add or .

, Tap two untapped Humans you control: Tap target creature an opponent controls.

Cycling (, Discard this card: Draw a card.)
When you cycle Sanctuary Smasher, put a first strike counter on target creature you control.

Cycling (, Discard this card: Draw a card.)

Savai Triome enters the battlefield tapped.
Cycling (, Discard this card: Draw a card.)

When Scoured Barrens enters the battlefield, you gain 1 life.
: Add or .

Flash
Whenever this creature deals combat damage to a player, draw a card.

Cycling (, Discard this card: Draw a card.)
When you cycle Shark Typhoon, create an X/X blue Shark creature token with flying.

• Destroy target artifact.
• Shredded Sails deals 4 damage to target creature with flying.
Cycling (, Discard this card: Draw a card.)

: Put the top two cards of your library into your graveyard.

Skycat Sovereign gets +1/+1 for each other creature you control with flying.
: Create a 1/1 white Cat Bird creature token with flying.

, Sacrifice Sleeper Dart: Target creature doesn't untap during its controller's next untap step.

Whenever you cast another spell that has flash, you draw a card and each opponent loses 1 life.

Double strike
Whenever this creature mutates, it deals 4 damage to target creature or planeswalker an opponent controls and you gain 4 life.

Enchant creature
Enchanted creature gets +1/+1.
As long as enchanted creature has vigilance, it assigns combat damage equal to its toughness rather than its power.

Whenever you cast a spell, draw two cards.
At the beginning of your end step, discard your hand.

Each creature you control with menace can't be blocked except by three or more creatures.

Cycling (, Discard this card: Draw a card.)
When you cycle Splendor Mare, put a lifelink counter on target creature you control.

, , Sacrifice Springjaw Trap: It deals 3 damage to any target.

Whenever you cast a noncreature spell, put a +1/+1 counter on Sprite Dragon.

Cycling (, Discard this card: Draw a card.)

If noncombat damage would be dealt to Stormwild Capridor, prevent that damage. Put a +1/+1 counter on Stormwild Capridor for each 1 damage prevented this way.

Cycling (, Discard this card: Draw a card.)

• Return target Human creature card from your graveyard to your hand.
• Return target non-Human creature card from your graveyard to your hand.

Exile target tapped creature. Put a +1/+1 counter on the creature tapped to pay this spell's additional cost.

When Swiftwater Cliffs enters the battlefield, you gain 1 life.
: Add or .