Flying

When Blood-Toll Harpy enters, each player loses 1 life.

Flying, trample

Whenever an opponent casts a spell, that player creates a Blood token. (It's an artifact with ", , Discard a card, Sacrifice this artifact: Draw a card.")

Whenever Bloodvial Purveyor attacks, it gets +1/+0 until end of turn for each Blood token defending player controls.

Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn. Create a Blood token. (It's an artifact with ", , Discard a card, Sacrifice this artifact: Draw a card.")

: For each color among permanents you control, add one mana of that color.

Blooming Marsh enters tapped unless you control two or fewer other lands.

: Add or .

Trample

, : You get (a ticket counter).

Reach

When Blossom Prancer enters, look at the top five cards of your library. You may reveal a creature or enchantment card from among them and put it into your hand. Put the rest on the bottom of your library in a random order. If you didn't put a card into your hand this way, you gain 4 life.

Whenever Blossoming Bogbeast attacks, you gain 2 life. Then creatures you control gain trample and get +X/+X until end of turn, where X is the amount of life you gained this turn.

Target creature you control gets +2/+2 and gains hexproof until end of turn.

Whenever Blossoming Tortoise enters or attacks, mill three cards, then return a land card from your graveyard to the battlefield tapped.

Activated abilities of lands you control cost less to activate.

Land creatures you control get +1/+1.

Target opponent exiles a creature or planeswalker they control with the greatest mana value among creatures and planeswalkers they control.

Blow Off Steam deals 1 damage to any target. (Then exile this card. You may cast the creature later from exile.)

Whenever a creature dies, if it had a -1/-1 counter on it, put a -1/-1 counter on target creature.

Flying

Lightning Breath — When Blue Dragon enters, until your next turn, target creature an opponent controls gets -3/-0, up to one other target creature gets -2/-0, and up to one other target creature gets -1/-0.

, : Put a charge counter on Blue Mana Battery.

, Remove any number of charge counters from Blue Mana Battery: Add , then add an additional for each charge counter removed this way.

Enchant creature

Enchanted creature can't be blocked by blue creatures.

Enchanted creature gets +2/+2 as long as an opponent controls a blue permanent.

Target player draws X cards. Shuffle Blue Sun's Zenith into its owner's library.

Partner with Owen Grady, Raptor Trainer (When this creature enters, target player may put Owen into their hand from their library, then shuffle.)

For each kind of counter on Blue, Loyal Raptor, each other Dinosaur you control enters with a counter of that kind on it.

You gain 1 life for each creature on the battlefield. Prevent all combat damage that would be dealt this turn.

Put a -1/-1 counter on target creature. Blur of Blades deals 2 damage to that creature's controller.

This spell can't be countered.

Shroud (This creature can't be the target of spells or abilities.)

When Blurry Visionary enters the battlefield, look at the top two cards of your library and put them back-to-back in the same sleeve with either card in front. They become a modal double-faced card for the rest of the game. Then put that card into your hand. (You can play either face of that double-faced card. Make sure to reset it when the game ends.)

: 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.)

Haste

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)

Trample

Other red creatures you control get +1/+1.

Other green creatures you control get +1/+1.

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

Deathtouch

Whenever another nontoken creature you control dies, Body Launderer connives.

When Body Launderer dies, return another target non-Rogue creature card with equal or lesser power from your graveyard to the battlefield.

Body of Knowledge's power and toughness are each equal to the number of cards in your hand.

You have no maximum hand size.

Whenever Body of Knowledge is dealt damage, draw that many cards.

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

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

Kicker—Sacrifice two lands. (You may sacrifice two lands in addition to any other costs as you cast this spell.)

Target player discards two cards. If this spell was kicked, that player discards three cards instead.

Flying

, Sacrifice a land: Search your library for a Mercenary permanent card with mana value 2 or less, put it onto the battlefield, then shuffle.

Bog Hoodlums can't block.

When Bog Hoodlums enters, clash with an opponent. If you win, put a +1/+1 counter on Bog Hoodlums. (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 mana value.)

: Add .

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, 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.

, : Search your library for a card named Festering Newt or Bubbling Cauldron, put it onto the battlefield tapped, then shuffle.

Return target Goblin card from your graveyard to your hand.

Menace (This creature can't be blocked except by two or more creatures.)

When Boggart Harbinger enters, you may search your library for a Goblin card, reveal it, then shuffle and put that card on top.

Champion a Goblin (When this enters, sacrifice it unless you exile another Goblin you control. When this leaves the battlefield, that card returns to the battlefield.)

Whenever a Goblin you control deals combat damage to a player, you may create a 1/1 black Goblin Rogue creature token.

Whenever another Goblin you control is put into a graveyard from the battlefield, you may have Boggart Shenanigans deal 1 damage to target player or planeswalker.

When Boggart Trawler enters, exile target player's graveyard.

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

Whenever a player casts a Goblin spell, you may pay . If you do, you gain 2 life.

When Boilerbilges Ripper enters, you may sacrifice another creature or enchantment. When you do, Boilerbilges Ripper deals 2 damage to any target.