Frenetic Efreet Avatar

Each permanent you control has phasing. (It phases in or out before you untap during each of your untap steps. While it’s phased out, it’s treated as though it doesn’t exist.)
At the beginning of your end step, flip a coin. If you win the flip, take an extra turn after this one.

Platinum Angel Avatar

If you control an artifact, a creature, an enchantment, and a land, you can’t lose the game and your opponents can’t win the game.

Haakon, Stromgald Scourge Avatar

Pay 1 life: You may cast target creature card in your graveyard this turn.
Whenever you cast a creature spell from your graveyard, it becomes a black Zombie Knight.
If a Zombie Knight would be put into your graveyard from the battlefield, exile it instead.

Viridian Zealot Avatar

, Sacrifice a creature: Destroy target artifact or enchantment. Search your library for a card with the same name as the sacrificed creature, reveal that card, and put it into your hand. Then shuffle your library.

Peacekeeper Avatar

: For each opponent who controls a creature, create a token that’s a copy of a card named Arrest and attach it to a creature that player controls chosen at random.

Nekrataal Avatar

Creature spells you cast cost less to cast. This effect reduces only the amount of colored mana you pay.

Kresh the Bloodbraided Avatar

Whenever a creature you control is devoured, create an X/X green Ooze creature token, where X is the devoured creature’s power.

Eight-and-a-Half-Tails Avatar

: Until end of turn, target permanent you control gains protection from a color chosen at random from colors it doesn’t have protection from.

Maralen of the Mornsong Avatar

At the beginning of the game, you may pay any amount of life.
You can’t draw cards.
At the beginning of your draw step, look at the top X cards of your library, where X is the amount of life paid with Maralen of the Mornsong Avatar. Put one of them into your hand, then shuffle your library.

Maro Avatar

Tap an untapped creature you control, Discard a card: Target creature you control gets +X/+X until end of turn, where X is the number of cards in your hand.

Master of the Wild Hunt Avatar

: Create a green creature token that’s a 2/2 Wolf, a 2/3 Antelope with forestwalk, a 3/2 Cat with shroud, or a 4/4 Rhino with trample, chosen at random.

Flametongue Kavu Avatar

Whenever a nontoken creature enters the battlefield under your control, that creature deals X damage to target creature, where X is a number chosen at random from 0 to 4.

Jaya Ballard Avatar

: Jaya Ballard Avatar deals an amount of damage chosen at random from 0 to X to any target. Activate this ability only once each turn.

Rumbling Slum Avatar

At the beginning of your upkeep, Rumbling Slum Avatar deals 1 damage to each opponent.

Tradewind Rider Avatar

: Each player returns a permanent they control to its owner’s hand unless they pay 2 life.

Jhoira of the Ghitu Avatar

, Discard a card: Copy three instant cards chosen at random. You may cast one of the copies without paying its mana cost.
, Discard a card: Copy three sorcery cards chosen at random. You may cast one of the copies without paying its mana cost. Activate this ability only any time you could cast a sorcery.

Phage the Untouchable Avatar

Pay 1 life: Until end of turn, whenever a creature deals combat damage to you, destroy that creature.
Pay 1 life: Until end of turn, whenever target creature you control deals combat damage to a creature, destroy the damaged creature.

Prodigal Sorcerer Avatar

At the beginning of your upkeep, look at the top card of your library. You may put that card into your graveyard.