Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

When Abbot of Keral Keep enters the battlefield, exile the top card of your library. Until end of turn, you may play that card.

Flying

When this creature transforms into Abolisher of Bloodlines, target opponent sacrifices three creatures.

Whenever Abomination blocks or becomes blocked by a green or white creature, destroy that creature at end of combat.

Cumulative upkeep—Put a -1/-1 counter on Aboroth. (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.)

Enchant creature

Enchanted creature has flying.

Threshold — Enchanted creature has shroud as long as seven or more cards are in your graveyard. (It can't be the target of spells or abilities.)

When Adder-Staff Boggart enters the battlefield, clash with an opponent. If you win, put a +1/+1 counter on Adder-Staff Boggart. (Each clashing player reveals the top card of their library, then puts that card on the top or bottom. A player wins if their card had a higher converted mana cost.)

, Sacrifice Aether Spellbomb: Return target creature to its owner's hand.

, Sacrifice Aether Spellbomb: Draw a card.

Constellation — Whenever Agent of Erebos or another enchantment enters the battlefield under your control, exile all cards from target player's graveyard.

Draw a card for each Bird on the battlefield.

When Akoum Boulderfoot enters the battlefield, it deals 1 damage to any target.

Whenever Alaborn Cavalier attacks, you may tap target creature.

Reach (This creature can block creatures with flying.)

: Target creature gets +2/+2 until end of turn. Activate this ability only during your turn, before attackers are declared.

As an additional cost to cast this spell, sacrifice a creature.

Search your library for a creature card, reveal that card, and put it into your hand. Then shuffle your library.

Changeling (This card is every creature type.)

: Target creature gains all creature types until end of turn.

: Target creature loses all creature types until end of turn.

Enchant land

Enchanted land has ", Sacrifice a creature: You gain life equal to the sacrificed creature's toughness."

Eminence — At the beginning of combat on your turn, if Arahbo, Roar of the World is in the command zone or on the battlefield, another target Cat you control gets +3/+3 until end of turn.

Whenever another Cat you control attacks, you may pay . If you do, it gains trample and gets +X/+X until end of turn, where X is its power.

Reach

: Monstrosity 3. (If this creature isn't monstrous, put three +1/+1 counters on it and it becomes monstrous.)

When Arbor Colossus becomes monstrous, destroy target creature with flying an opponent controls.

Trample

When Arborback Stomper enters the battlefield, you gain 5 life.

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.)

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

Flying

At the beginning of your upkeep, sacrifice Arcades Sabboth unless you pay .

Each untapped creature you control gets +0/+2 as long as it's not attacking.

: Arcades Sabboth gets +0/+1 until end of turn.

Choose target creature. Whenever that creature is dealt damage this turn, it deals that much damage to each other creature and each player.

Trample

Whenever another artifact enters the battlefield, put a +1/+1 counter on Arcbound Crusher.

Modular 1 (This creature enters the battlefield with a +1/+1 counter on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

Haste

Modular 2 (This creature enters the battlefield with two +1/+1 counters on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

At the beginning of your upkeep, put a +1/+1 counter on each creature with modular you control.

Modular 6 (This creature enters the battlefield with six +1/+1 counters on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

Remove a +1/+1 counter from Arcbound Reclaimer: Put target artifact card from your graveyard on top of your library.

Modular 2 (This creature enters the battlefield with two +1/+1 counters on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

Flying

Modular 1 (This creature enters the battlefield with a +1/+1 counter on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

Modular 1 (This creature enters the battlefield with a +1/+1 counter on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

Flying

: Balshan Collaborator gets +1/+1 until end of turn.

Barrage of Boulders deals 1 damage to each creature you don't control.

Ferocious — If you control a creature with power 4 or greater, creatures can't block this turn.

Beacon Bolt deals damage to target creature equal to the total number of instant and sorcery cards you own in exile and in your graveyard.

Jump-start (You may cast this card from your graveyard by discarding a card in addition to paying its other costs. Then exile this card.)

Sacrifice Benevolent Bodyguard: Target creature you control gains protection from the color of your choice until end of turn.

, : Create a 2/2 colorless Shapeshifter creature token with changeling. (It has every creature type.)

Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.)

As an additional cost to cast this spell, sacrifice a creature.

Return a creature card from your graveyard to the battlefield, then return another creature card from your graveyard to your hand.

Whenever you gain life, put a +1/+1 counter on Bloodbond Vampire.

: Boa Constrictor gets +3/+3 until end of turn.

Look at the top five cards of your library. You may reveal a historic card from among them and put it into your hand. Put the rest on the bottom of your library in a random order. (Artifacts, legendaries, and Sagas are historic.)

You may have Body Double enter the battlefield as a copy of any creature card in a graveyard.

When Body Snatcher enters the battlefield, exile it unless you discard a creature card.

When Body Snatcher dies, exile Body Snatcher and return target creature card from your graveyard to the battlefield.

Protection from white

At the beginning of your upkeep, sacrifice Bog Elemental unless you sacrifice a land.

Whenever a player casts a black spell, Bog Gnarr gets +2/+2 until end of turn.

Flying (This creature can't be blocked except by creatures with flying or reach.)

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

Bog Serpent can't attack unless defending player controls a Swamp.

When you control no Swamps, sacrifice Bog Serpent.

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

Sacrifice another creature: Until end of turn, Bogardan Dragonheart becomes a Dragon with base power and toughness 4/4, flying, and haste.

Flash

Flying

When Bogardan Hellkite enters the battlefield, it deals 5 damage divided as you choose among any number of targets.

Flying

When Bogardan Phoenix dies, exile it if it had a death counter on it. Otherwise, return it to the battlefield under your control and put a death counter on it.