Enchant creature
Enchanted creature gets +2/+2 and has flying and shroud. (It can't be the target of spells or abilities.)

Deathtouch
When Gonti enters, look at the top four cards of target opponent's library, exile one of them face down, then put the rest on the bottom of that library in a random order. You may cast that card for as long as it remains exiled, and mana of any type can be spent to cast that spell.

At the beginning of each combat, creatures you control gain first strike until end of turn if a creature you control has first strike. The same is true for flying, deathtouch, double strike, haste, hexproof, indestructible, lifelink, menace, reach, skulk, trample, and vigilance.

( can be paid with either or 2 life.)
You may have this creature enter as a copy of any artifact or creature on the battlefield, except it's an artifact in addition to its other types.

Whenever this creature becomes blocked by a creature, put that creature on top of its owner's library.

: Monstrosity X. (If this creature isn't monstrous, put X +1/+1 counters on it and it becomes monstrous.)
When Polukranos becomes monstrous, it deals X damage divided as you choose among any number of target creatures your opponents control. Each of those creatures deals damage equal to its power to Polukranos.

, : Reveal cards from the top of your library until you reveal a land card. This artifact deals damage equal to the number of nonland cards revealed this way to any target. If the revealed land card was a Mountain, this artifact deals double that damage instead. Put the revealed cards on the bottom of your library in any order.

Deathtouch
Mystic Arcanum — At the beginning of your end step, exile the top card of your library. Until the end of your next turn, you may play that card.
Pact Boon — Whenever you play a card from exile, create a Treasure token.

When this creature enters, create two 1/1 red Goblin creature tokens.
Sacrifice a Goblin: Target player loses 1 life and you gain 1 life.

: Adapt 2. (If this creature has no +1/+1 counters on it, put two +1/+1 counters on it.)

: Create X 1/1 red Goblin creature tokens, where X is the number of Goblins you control.

At the beginning of your end step, draw a card. Each player may put a land card from their hand onto the battlefield, then each opponent who didn't draws a card.

Indestructible
As long as your devotion to green is less than five, Nylea isn't a creature. (Each in the mana costs of permanents you control counts toward your devotion to green.)
Other creatures you control have trample.
: Target creature gets +2/+2 until end of turn.

Draw two cards. Create a Treasure token. (It's an artifact with ", Sacrifice this token: Add one mana of any color.")

Create a 1/1 blue and black Horror creature token with flying.
Cipher (Then you may exile this spell card encoded on a creature you control. Whenever that creature deals combat damage to a player, its controller may cast a copy of the encoded card without paying its mana cost.)

When this creature enters, you may return target creature card from your graveyard to your hand.

, : Return target creature to its owner's hand unless its controller pays .

0: Exile Kaya or up to one target creature. Return that card to the battlefield under its owner's control at the beginning of your next upkeep. You lose 2 life.
−1: Each opponent loses 2 life and you gain 2 life.
−2: Each opponent discards a card and you draw a card.

Exile all multicolored permanents.

: Regenerate this creature. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

When this enchantment enters, exile target creature or enchantment an opponent controls until this enchantment leaves the battlefield. (That permanent returns under its owner's control.)

Choose artifact, creature, or land. Tap all untapped permanents of the chosen type target player controls, or untap all tapped permanents of that type that player controls.

Forked Lightning deals 4 damage divided as you choose among one, two, or three target creatures.

Whenever this creature attacks or blocks, sacrifice a land.

Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)

Return target creature card from your graveyard to the battlefield.

Protection from red
Elemental creatures you control get +1/+1.
When this creature enters, create a number of 1/0 blue Elemental creature tokens equal to your devotion to blue. (Each in the mana costs of permanents you control counts toward your devotion to blue.)

: This creature gets +1/+1 until end of turn. Target opponent creates a 1/1 green Hippo creature token.
: This creature gains protection from black and from red until end of turn. Target opponent gains 2 life.
: This creature gains flying until end of turn. Target opponent may draw a card.

When this creature enters, clash with an opponent. If you win, put a +1/+1 counter on this creature. (Each clashing player reveals the top card of their library, then puts that card on their choice of the top or bottom. A player wins if their card had a greater mana value.)

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)
Any number of target nonland permanents you control phase out. (Treat them and anything attached to them as though they don't exist until your next turn.)

Swelter deals 2 damage to each of two target creatures.

Whenever another creature you control enters, creatures you control get +1/+1 until end of turn.

, , Sacrifice a creature: This artifact deals 4 damage to target creature.

Dash (You may cast this spell for its dash cost. If you do, it gains haste, and it's returned from the battlefield to its owner's hand at the beginning of the next end step.)

Choose two target creatures that share no creature types. Those creatures fight each other. (Each deals damage equal to its power to the other.)

Creatures you control have ": Add ."