Reveal the top X cards of your library. Put all land cards from among them onto the battlefield tapped and the rest on the bottom of your library in a random order.

Spell mastery -- If there are two or more instant and/or sorcery cards in your graveyard, untap those lands.

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

Mutate {5}{U} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

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.

Mutate {5}{G} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

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.

Whenever you cast a creature spell, draw a card.

Destroy target permanent. Its controller creates a 3/3 green Beast creature token.

{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.

Mutate {2}{B/G}{B/G} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

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

Mutate {3}{B} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

Menace (This creature can't be blocked except by two or more creatures.)

Whenever this creature mutates, each opponent discards a card.

Partner with Ukkima, Stalking Shadow (When this creature enters the battlefield, target player may put Ukkima into their hand from their library, then shuffle.)

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

Mutate {4}{B} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

Whenever this creature mutates, each opponent sacrifices a creature.

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

Whenever Cold-Eyed Selkie deals combat damage to a player, you may draw that many cards.

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

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

If you control a commander, you may cast this spell without paying its mana cost.

Exile target creature.

Destroy all creatures. Each player loses life equal to the number of creatures they controlled that were destroyed this way.

Dimir Aqueduct enters the battlefield tapped.

When Dimir Aqueduct enters the battlefield, return a land you control to its owner's hand.

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

Mutate {4}{B}{B} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

Flash

Flying

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

Dismal Backwater enters the battlefield tapped.

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

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

Mutate {3}{U} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

Flying

Whenever this creature mutates, draw a card.

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

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

Fertilid enters the battlefield with two +1/+1 counters on it.

{1}{G}, 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.

Return up to two target creature cards from your graveyard to your hand.

---

You may put two +1/+1 counters on a creature you control. Then all creatures get -4/-4 until end of turn.

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

When Garruk's Uprising enters the battlefield, if you control a creature with power 4 or greater, draw a card.

Creatures you control have trample. (They can deal excess combat damage to the player or planeswalker they're attacking.)

Whenever a creature with power 4 or greater enters the battlefield under your control, draw a card.

Destroy each nonland permanent with mana value X or less.

Mutate {3}{G} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

Reach

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

Golgari Rot Farm enters the battlefield tapped.

When Golgari Rot Farm enters the battlefield, return a land you control to its owner's hand.

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

If you would lose unspent mana, that mana becomes colorless instead.

Mutate {2}{B} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

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.

({T}: Add {U}.)

({T}: Add {U}.)

Jungle Hollow enters the battlefield tapped.

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

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

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.

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.

At the beginning of your upkeep, scry 1.

Whenever you cast a creature spell, you may pay {G}. If you do, draw a card.

When Llanowar Visionary enters the battlefield, draw a card.

{T}: Add {G}.

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

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

Mutate {2}{G} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

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

Draw X cards.

Mutate {4}{B} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

Flying

Whenever this creature mutates, exile the top card of each opponent's library face down. You may look at and play those cards for as long as they remain exiled.

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.

Whenever this creature mutates, put a +1/+1 counter on it.

Opulent Palace enters the battlefield tapped.

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

Mutate {1}{B}{G}{U} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

Trample

Whenever this creature deals combat damage to a player, return target creature card with mutate from your graveyard to your hand.

Each creature spell you cast costs {1} less to cast if it has mutate.

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

Mutate {3}{U} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

Flash

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

Indestructible

Whenever Predator Ooze attacks, put a +1/+1 counter on it.

Whenever a creature dealt damage by Predator Ooze this turn dies, put a +1/+1 counter on Predator Ooze.

At the beginning of your upkeep, draw a card if you control a creature with the greatest power among creatures on the battlefield. Otherwise, put a +1/+1 counter on a creature you control.

Choose two --

• Target player loses X life.

• Return target creature card with mana value X or less from your graveyard to the battlefield.

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

• Up to X target creatures gain fear until end of turn. (They can't be blocked except by artifact creatures and/or black creatures.)

Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you.

Destroy target artifact or creature. It can't be regenerated.

When Reclamation Sage enters the battlefield, you may destroy target artifact or enchantment.

{T}: Add {C}.

{4}, {T}: Target creature can't be blocked this turn.

Mutate {3}{G} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

Trample

Whenever this creature mutates, destroy target noncreature permanent. Its controller creates a 3/3 green Beast creature token.

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

When Shriekmaw enters the battlefield, destroy target nonartifact, nonblack creature.

Evoke {1}{B} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters the battlefield.)

Simic Growth Chamber enters the battlefield tapped.

When Simic Growth Chamber enters the battlefield, return a land you control to its owner's hand.

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

Soaring Seacliff enters the battlefield tapped.

When Soaring Seacliff enters the battlefield, target creature gains flying until end of turn.

{T}: Add {U}.

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

Mutate {5}{U} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

Flying

Whenever this creature mutates, gain control of target noncreature artifact.

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

Sunken Hollow enters the battlefield tapped unless you control two or more basic lands.

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

Temple of Malady enters the battlefield tapped.

When Temple of Malady enters the battlefield, scry 1.

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

Temple of Mystery enters the battlefield tapped.

When Temple of Mystery enters the battlefield, scry 1.

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

{T}: Add {C}{C}. Activate only if you control five or more lands.

Thornwood Falls enters the battlefield tapped.

When Thornwood Falls enters the battlefield, you gain 1 life.

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

Any player may cast spells as though they had flash.

Your opponents can't cast spells during your turn.

At the beginning of your upkeep, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)

Exile a card from your graveyard: Add {C}. Spend this mana only to cast a spell that's one or more colors without {X} in its mana cost.

Mutate {3}{G/U}{G/U} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

Whenever this creature mutates, create a 3/3 green Beast creature token.

Flying

Whenever Trygon Predator deals combat damage to a player, you may destroy target artifact or enchantment that player controls.

+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.

Partner with Cazur, Ruthless Stalker (When this creature enters the battlefield, target player may put Cazur into their hand from their library, then shuffle.)

Ukkima, Stalking Shadow can't be blocked.

When Ukkima leaves the battlefield, it deals X damage to target player and you gain X life, where X is its power.

Target opponent exiles the top X cards of their library. You may cast any number of spells with mana value X or less from among them without paying their mana costs.

Vigilance, trample

Undying (When this creature dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.)

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

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