Return all attacking creatures to their owner's hand.

{T}: Add {C}.

{G}{U}, {T}: You may cast spells this turn as though they had flash.

This spell can't be countered.

You may have Altered Ego enter the battlefield as a copy of any creature on the battlefield, except it enters with X additional +1/+1 counters on it.

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.

Creatures you control have hexproof.

Creatures your opponents control lose hexproof and can't have or gain hexproof.

Creatures you control have flying.

Creatures your opponents control lose flying and can't have or gain flying.

{T}: Untap two target lands.

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

Whenever a creature you control deals combat damage to a player, you may draw a card.

{1}{U}, {T}: Creatures your opponents control attack this turn if able.

Draw a card for each creature target player controls, then draw a card for each creature another target player controls.

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

{1}{G}: Regenerate Blight Mamba.

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.

Enchant creature

Whenever enchanted creature deals damage to an opponent, you may draw a card.

Exile X target creatures. For each creature exiled this way, its controller creates a 2/2 green Boar creature token.

Flash

Whenever a player taps a land for mana, that player adds one mana of any type that land produced.

Counter target spell with mana value 4 or greater.

Whenever a permanent deals damage to you, return it to its owner's hand.

Whenever a creature deals combat damage to one of your opponents, its controller may draw a card.

{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.

({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}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

Enchant creature

{U}: Tap enchanted creature.

{U}: Untap enchanted creature.

Creatures your opponents control with hexproof can be the targets of spells and abilities you control as though they didn't have hexproof.

{3}, Sacrifice Glaring Spotlight: Creatures you control gain hexproof until end of turn and can't be blocked this turn.

Hooded Hydra enters the battlefield with X +1/+1 counters on it.

When Hooded Hydra dies, create a 1/1 green Snake creature token for each +1/+1 counter on it.

Morph {3}{G}{G}

As Hooded Hydra is turned face up, put five +1/+1 counters on it.

Whenever an ability of equipped creature is activated, if it isn't a mana ability, copy that ability. You may choose new targets for the copy.

Equip {3}

Choose one --

• Counter target spell.

• You may choose new targets for target spell.

• Copy target instant or sorcery spell. You may choose new targets for the copy.

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

{G}{U}: Target creature can't be blocked this turn. If that creature is a Snake, it gets +2/+2 until end of turn.

When Keeper of Keys enters the battlefield, you become the monarch.

At the beginning of your upkeep, if you're the monarch, creatures you control can't be blocked 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.

{T}: Untap target land.

Threshold -- {T}: Untap up to three target lands. Activate only if seven or more cards are in your graveyard.

Indestructible

As long as your devotion to green and blue is less than seven, Kruphix isn't a creature.

You have no maximum hand size.

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

Whenever you draw a card, put a +1/+1 counter on Lorescale Coatl.

Hideaway 4 (When this land enters the battlefield, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.)

Mosswort Bridge enters the battlefield tapped.

{T}: Add {G}.

{G}, {T}: You may play the exiled card without paying its mana cost if creatures you control have total power 10 or greater.

Cumulative upkeep {1} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Whenever an opponent casts a noncreature spell, you may draw a card unless that player pays {4}.

Destroy target artifact or enchantment.

Whenever Ohran Viper deals combat damage to a creature, destroy that creature at end of combat.

Whenever Ohran Viper deals combat damage to a player, you may draw a card.

{T}: Target creature becomes a Frog with base power and toughness 3/3 until end of turn.

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

Enchant creature

Whenever enchanted creature deals damage to an opponent, you may draw a card.

Snake offering (You may cast this card any time you could cast an instant by sacrificing a Snake and paying the difference in mana costs between this and the sacrificed Snake. Mana cost includes color.)

{T}: Untap all Forests and all green creatures. Activate only once each turn.

Enchant creature

{U}: Untap enchanted creature.

{U}: Enchanted creature gains flying until end of turn.

{U}: Enchanted creature gains shroud until end of turn. (It can't be the target of spells or abilities.)

{1}: Enchanted creature gets +1/-1 or -1/+1 until end of turn.

Whenever an opponent casts a spell, you may exchange control of Perplexing Chimera and that spell. If you do, you may choose new targets for the spell. (If the spell becomes a permanent, you control that permanent.)

Counter target spell. At the beginning of your next precombat main phase, add X mana in any combination of colors, where X is that spell's mana value.

Until end of turn, each creature target player controls loses all abilities and becomes a blue Frog with base power and toughness 1/1.

Untap target creature you don't control. That creature blocks this turn if able.

Draw a card.

This spell can't be countered.

Creature spells you control can't be countered.

Untap target creature.

Draw a card.

Trample

When Regal Behemoth enters the battlefield, you become the monarch.

Whenever you tap a land for mana while you're the monarch, add an additional one mana of any color.

You have no maximum hand size.

{T}: Add {C}.

Create a 5/4 green Snake creature token. Lands you control don't untap during your next untap step.

At the beginning of each player's draw step, that player draws an additional card.

Each player may play an additional land on each of their turns.

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

Reveal your hand: If you have seven or more land cards in your hand, flip Sasaya, Orochi Ascendant.

Whenever a land you control is tapped for mana, add an additional one mana of any type that land produced for each other land you control with the same name as it.

({G/U} can be paid with either {G} or {U}.)

{1}{G}: Move a +1/+1 counter from target creature onto another target creature with the same controller.

{1}{U}: Attach target Aura attached to a permanent to another permanent with the same controller.

Deathtouch

When Skullwinder enters the battlefield, return target card from your graveyard to your hand, then choose an opponent. That player returns a card from their graveyard to their hand.

Enchant creature

Enchanted creature gets +1/+1 and has "Whenever this creature deals damage to an opponent, you may draw a card."

Totem armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)

Until end of turn, target creature loses all abilities and becomes a green Snake with base power and toughness 1/1.

Draw a card.

{3}{U}{U}: Shuffle your library.

{X}: Look at the top X cards of your library, then put them back in any order.

{2}: Squallmonger deals 1 damage to each creature with flying and each player. Any player may activate this ability.

Flash

You may have Stunt Double enter the battlefield as a copy of any creature on the battlefield.

Counter target enchantment, instant, or sorcery spell. Its controller creates a 2/2 blue Bird creature token with flying.

Equipped creature has hexproof and haste. (It can't be the target of spells or abilities your opponents control.)

Equip {1}

Your opponents play with their hands revealed.

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.

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

{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.)

Until end of turn, creatures you control get +1/+1 and gain trample and infect. (Creatures with infect deal damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

Flying

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

Draw three cards. You may play an additional land this turn.

When Well of Ideas enters the battlefield, draw two cards.

At the beginning of each other player's draw step, that player draws an additional card.

At the beginning of your draw step, draw two additional cards.

Return all creatures to their owners' hands except for Krakens, Leviathans, Octopuses, and Serpents.

Whenever a creature an opponent controls becomes the target of a spell or ability you control, gain control of that creature for as long as you control Willbreaker.