Mayael the Anima Avatar

At the beginning of your upkeep, reveal the top card of your library. If it's a creature card with power 5 or greater, put it into your hand. Otherwise, you may put it on the bottom of your library.

Urza

Chronatog Avatar

You have no maximum hand size.
{0}: Draw three cards. You skip your next turn. Activate only once each turn.

Morinfen Avatar

At the beginning of your upkeep, you lose 1 life for each permanent you control.

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.

Squee, Goblin Nabob Avatar

{1}: Prevent the next 1 damage that would be dealt to target creature you control this turn.

Nekrataal Avatar

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

Lyzolda, the Blood Witch Avatar

Hellbent — As long as you have no cards in hand, if a source you control would deal damage to a permanent or player, it deals double that damage to that permanent or player instead.
Hellbent — At the beginning of your end step, if you have no cards in hand, each of your opponents discards a card.

Squee

Your opponents play with their hands revealed.

Orim

Birds of Paradise Avatar

Lands you control have "{T}: Add one mana of any color."

Eladamri

{0}: The next 1 damage that would be dealt to target creature you control is dealt to you instead.

Orcish Squatters Avatar

At the beginning of your first main phase, add {C} for each land target opponent controls.

Peacekeeper Avatar

{3}: 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.

Diamond Faerie Avatar

{S}: Target creature you control gets +1/+1 until end of turn.

Sliver Queen Avatar

Whenever you cast a non-Sliver creature spell, exile that spell. If you do, create a token that's a copy of a random non-Shapeshifter Sliver creature card with the same mana value as that spell.

Higure, the Still Wind Avatar

Whenever a nontoken creature you control deals combat damage to an opponent, choose a creature card at random from your library, reveal that card, put it into your hand, then shuffle.

Tahngarth

Master of the Wild Hunt Avatar

{2}{G}: 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.

Enigma Sphinx Avatar

Whenever you cast a colored artifact spell for the first time each turn, search your library for a colored artifact card chosen at random whose mana value is less than that spell's mana value. You may play that card without paying its mana cost. If you don't, put that card on the bottom of your library.

Sisay

Whenever you tap a land for mana, add one mana of any type that land produced.

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.

Figure of Destiny Avatar

{X}: Put a +1/+1 counter on target creature with fewer than X +1/+1 counters on it.

Jhoira of the Ghitu Avatar

{3}, Discard a card: Copy three instant cards chosen at random. You may cast one of the copies without paying its mana cost.
{3}, Discard a card: Copy three sorcery cards chosen at random. You may cast one of the copies without paying its mana cost. Activate only as a sorcery.

Hell's Caretaker Avatar

{3}, Sacrifice a creature: Return target creature card from your graveyard to the battlefield.

Serra

Erhnam Djinn Avatar

Whenever you cast a creature spell, create a 1/1 green Saproling creature token.

Karona, False God Avatar

At the beginning of your upkeep, exchange control of a permanent you control chosen at random and a permanent target opponent controls chosen at random.

Gerrard

At the beginning of your draw step, draw an additional card.

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.

Reaper King Avatar

Each creature you control gets +1/+1 for each of its colors.

Bosh, Iron Golem Avatar

{X}, Sacrifice an artifact with mana value X: Bosh, Iron Golem Avatar deals X damage to any target.

Crovax

Whenever a creature you control deals damage to a creature or player, you gain 1 life.

Titania

You may play an additional land on each of your turns.

Mirri the Cursed Avatar

Creatures you control have "{T}: Another target creature gets -1/-1 until end of turn. Put a +1/+1 counter on this creature."

Sisters of Stone Death Avatar

Each creature you control must be blocked if able.
{4}: Exile target creature that's blocking a creature you control.

Sakashima the Impostor Avatar

{2}: Choose a creature you control. It becomes a copy of target creature except for its name.

Two-Headed Giant of Foriys Avatar

Creatures you control have menace. (They can't be blocked except by two or more creatures.)
Each creature you control can block an additional creature each combat.

Heartwood Storyteller Avatar

The first creature spell you cast each turn costs {1} less to cast.
The first noncreature spell each opponent casts each turn costs {1} more to cast.

Takara

Sacrifice a creature: Takara deals 1 damage to any target.

Mishra

If a creature you control would deal damage, it deals double that damage instead.

Sidar Kondo

{3}: Target creature gets +3/+3 until end of turn.

Selenia

Lyna

Creatures you control have shadow. (They can block and be blocked only by creatures with shadow.)

Stuffy Doll Avatar

{0}: If damage would be dealt to you this turn by a source of your choice, prevent that damage. Stuffy Doll Avatar deals damage to you and target opponent or planeswalker equal to half the damage prevented this way, rounded up. Activate only once each turn.

Oracle

{0}: Untap target attacking creature you control and remove it from combat.

Rumbling Slum Avatar

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

Sliver Queen, Brood Mother

{3}: Create a 1/1 colorless Sliver creature token.

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.

Eladamri, Lord of Leaves Avatar

At the beginning of each player's first main phase, that player adds {G}{G}.

Dakkon Blackblade Avatar

You may play any colored card from your hand as a copy of a basic land card chosen at random that can produce mana of one of the card's colors.

Royal Assassin Avatar

At the beginning of your upkeep, you draw a card and you lose 1 life.

Braids, Conjurer Adept Avatar

{2}: Each player may put a land card from their hand onto the battlefield tapped.
{3}: Each player may put a noncreature artifact card from their hand onto the battlefield.
{4}: Each player may put a creature card from their hand onto the battlefield. Activate only as a sorcery.

Loxodon Hierarch Avatar

Sacrifice a permanent: Regenerate target creature you control.

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.

Jaya Ballard Avatar

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

Necropotence Avatar

Skip your draw step.
At the beginning of your end step, if it's not the first turn of the game, put a death counter on Necropotence Avatar. You draw X cards and you lose X life, where X is the number of death counters on Necropotence Avatar.

Grinning Demon Avatar

Whenever a nontoken creature you control dies, target opponent discards a card.

Multani

Creatures you control get +X/+0, where X is the number of cards in your hand.

Mirri

If a basic land you control is tapped for mana, it produces mana of a color of your choice instead of any other type.

Seshiro the Anointed Avatar

At the beginning of the game, choose a creature type. Creatures you control, creature spells you control, and creature cards you own in any zone other than the battlefield or the stack have the chosen type in addition to their other types.

Rofellos

Whenever a creature you control dies, draw a card.

Raksha Golden Cub Avatar

Creatures you control get +0/+1.
Equipped creatures you control get +1/+0 and have first strike.

Tradewind Rider Avatar

{3}: Each player returns a permanent they control to its owner's hand unless they pay 2 life.

Rith, the Awakener Avatar

Whenever a creature you control deals combat damage to a player, you may pay {5}. If you do, create a 5/5 red Dragon creature token with flying.

Fallen Angel Avatar

Whenever a creature you control dies, target opponent loses 1 life and you gain 1 life.

Xantcha

Sacrifice a permanent: Regenerate target creature.

Hermit Druid Avatar

At the beginning of your upkeep, put a land card from your library chosen at random onto the battlefield.

Karn

Each noncreature artifact you control is an artifact creature with power and toughness each equal to its mana value.

Stalking Tiger Avatar

Whenever you cast a creature spell, you may pay {1}. If you do, draw a card.

Serra Angel Avatar

Whenever you cast a spell, you gain 2 life.

Maelstrom Archangel Avatar

At end of combat, for each creature you controlled at the time it dealt combat damage to a player this turn, copy a random card with the same mana cost as that creature. You may pay {3}. If you do, choose one of those copies. If a copy of a permanent card is chosen, you may create a token that's a copy of that card. If a copy of an instant or sorcery card is chosen, you may cast the copy without paying its mana cost.

Mirror Entity Avatar

{X}: Choose a creature type. Until end of turn, creatures you control of the chosen type have base power and toughness X/X and gain all creature types.

Oni of Wild Places Avatar

Creatures you control have haste.
At the beginning of your upkeep, return a creature you control to its owner's hand.

Dauntless Escort Avatar

Creatures you control have exalted. (Whenever a creature you control attacks alone, it gets +1/+1 until end of turn for each instance of exalted among permanents you control.)

Greven il-Vec

Whenever a creature you control deals damage to a creature, destroy the other creature. It can't be regenerated.

Ertai

Creatures you control have hexproof. (They can't be the targets of spells or abilities your opponents control.)

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.

Flametongue Kavu Avatar

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

Elvish Champion Avatar

You begin the game with a 1/1 green Elf creature token on the battlefield. It has "{T}: Add {G}."

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.

Ashling the Pilgrim Avatar

{2}: Ashling the Pilgrim Avatar deals 1 damage to each creature and each player.

Starke

At the beginning of your draw step, you may draw an additional card. If you do, put a card from your hand on the bottom of your library.

{3}: Return target creature card from your graveyard to your hand.

Ashnod

Whenever a creature deals damage to you, destroy it.

Viridian Zealot Avatar

{2}, 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, put it into your hand, then shuffle.

Maraxus

Volrath

Whenever a creature you control is put into your graveyard from the battlefield, you may put it on top of your library.

Teysa, Orzhov Scion Avatar

Whenever a nontoken creature dies, create a 1/1 white Spirit creature token with flying.

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.

Momir Vig, Simic Visionary Avatar

{X}, Discard a card: Create a token that's a copy of a creature card with mana value X chosen at random. Activate only as a sorcery and only once each turn.

Hanna

Malfegor Avatar

Whenever a creature you control enters, if it was unearthed, it gets +3/+0.
Whenever a creature you control is exiled, if it was unearthed, shuffle that card into its owner's library.

Goblin Warchief Avatar

Attacking creatures you control get +1/+0.

Arcbound Overseer Avatar

At the beginning of your upkeep, you may put a +1/+1 counter on target creature you control.
At the beginning of your upkeep, you may put a charge counter on target permanent you control.

Arcanis, the Omnipotent Avatar

{X}, Return a creature you control with mana value X to its owner's hand: Draw a number of cards chosen at random between 0 and X. X can't be 0.

Tawnos

You may cast artifact, creature, and enchantment spells as though they had flash.

Etched Oracle Avatar

You may pay {W}{U}{B}{R}{G} rather than pay the mana cost for spells that you cast.

Barrin

Sacrifice a permanent: Return target creature to its owner's hand.

Stonehewer Giant Avatar

Whenever a creature you control enters, create a token that's a copy of a random Equipment card with mana value less than that creature's mana value. Attach that Equipment to that creature.

Eight-and-a-Half-Tails Avatar

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

Murderous Redcap Avatar

Whenever a creature you control enters with a counter on it, you may have it deal damage equal to its power to any target.

Ashling, the Extinguisher Avatar

{5}: Destroy all nonland permanents. Activate only once and only during your turn.

Akroma, Angel of Wrath Avatar

Whenever a creature you control enters, it gains two abilities chosen at random from among flying, first strike, trample, haste, protection from black, protection from red, and vigilance.

Vampire Nocturnus Avatar

Play with the top card of your library revealed.
As long as the top card of your library is black, black creatures you control get +2/+1.