Affinity for historic permanents (This spell costs less to cast for each artifact, legendary, and/or Saga permanent you control.)

When Banish to Another Universe enters, exile target nonland permanent an opponent controls until Banish to Another Universe leaves the battlefield.

Carnival deals 1 damage to target creature or planeswalker and 1 damage to that permanent's controller.

Deathtouch

When Carnival Carnivore enters, you get , then you may put a sticker on a nonland permanent you own.

First strike, haste

Unleash (You may have this creature enter with a +1/+1 counter on it. It can't block as long as it has a +1/+1 counter on it.)

Destroy target artifact, enchantment, or creature with flying. If that permanent's mana value was 3 or less, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

: Put a +1/+1 counter on Carnivorous Moss-Beast.

Flying

Cognivore's power and toughness are each equal to the number of instant cards in all graveyards.

Gain control of target creature with power 2 or less.

Whenever Hydra Omnivore deals combat damage to an opponent, it deals that much damage to each other opponent.

Target opponent discards a card at random.

Target creature becomes white until end of turn. Tap that creature.

Draw a card.

Defender

Whenever you cast an instant or sorcery spell, Nivix Cyclops gets +3/+0 until end of turn and can attack this turn as though it didn't have defender.

: Add .

, : Exile the top card of your library. Until your next turn, you may cast it if it's an instant or sorcery spell.

Flying

When Niv-Mizzet Reborn enters, reveal the top ten cards of your library. For each color pair, choose a card that's exactly those colors from among them. Put the chosen cards into your hand and the rest on the bottom of your library in a random order.

Flying, hexproof from multicolored

Whenever Niv-Mizzet, Guildpact deals combat damage to a player, it deals X damage to any target, target player draws X cards, and you gain X life, where X is the number of different color pairs among permanents you control that are exactly two colors.

Flying, hexproof from monocolored

Each instant and sorcery card in your graveyard that's exactly two colors has jump-start. (You may cast that card from your graveyard by discarding a card in addition to paying its other costs. Then exile it.)

Flying

You have no maximum hand size.

Whenever a source you control deals noncombat damage to an opponent, you draw that many cards.

Raucous Carnival enters tapped unless a player has 13 or less life.

: Add or .

Changeling (This card is every creature type.)

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for .)

Draw X cards.