, Pay 1 life, Sacrifice Bloodstained Mire: Search your library for a Swamp or Mountain card, put it onto the battlefield, then shuffle.

: Add or .

Bloodsworn Knight's power and toughness are each equal to the number of creature cards in your graveyard.

, Discard a card: Bloodsworn Knight gains indestructible until end of turn. Tap it. (Damage and effects that say "destroy" don't destroy it.)

Flying

Commander creatures you control get +2/+2 and have haste.

Haste

When Bloodthirsty Adversary enters, you may pay any number of times. When you pay this cost one or more times, put that many +1/+1 counters on Bloodthirsty Adversary, then exile up to that many target instant and/or sorcery cards with mana value 3 or less from your graveyard and copy them. You may cast any number of the copies without paying their mana costs.

Equipped creature gets +2/+0 and is goaded. (It attacks each combat if able and attacks a player other than you if able.)

: Attach Bloodthirsty Blade to target creature an opponent controls. Activate only as a sorcery.

: Put a devotion counter on Bloodthirsty Ogre.

: Target creature gets -X/-X until end of turn, where X is the number of devotion counters on Bloodthirsty Ogre. Activate only if you control a Demon.

Gift a Treasure (You may promise an opponent a gift as you cast this spell. If you do, they create a Treasure token before its other effects. It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")

Blooming Blast deals 2 damage to target creature. If the gift was promised, Blooming Blast also deals 3 damage to that creature's controller.

Ward (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)

At the beginning of your end step, put a +1/+1 counter on target creature you control.

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.

Create X tapped 2/1 white and black Inkling creature tokens with flying. If X is 6 or more, destroy all noncreature, nonland permanents.

Up to three target creatures can't block this turn. Destroy any of them that are Walls.

Choose one —

• Counter target red spell.

• Destroy target red permanent.

Gain control of target creature with mana value X or less. If X is 5 or more, create a token that's a copy of that creature.

: An opponent tells you a statement about themselves and secretly notes whether it's true or false. You guess which it is. If you guessed correctly, Blufferfish gets +2/+0 and can't be blocked 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.)

Tap target creature you don't control.

Overload (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

When Boareskyr Tollkeeper enters the battlefield, target opponent reveals all creature and land cards in their hand. Choose one of them. That card perpetually gains "This permanent enters the battlefield tapped."

Create a 0/0 green and blue Fractal creature token. Put X +1/+1 counters on it, where X is the number of cards in your library.

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.)

Bog Rats can't be blocked by Walls.

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

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

, Sacrifice Boggart Arsonists: Destroy target Scarecrow or Plains.

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

Backup 1 (When this creature enters, put a +1/+1 counter on target creature. If that's another creature, it gains the following ability until end of turn.)

Whenever this creature attacks, tap target artifact or creature an opponent controls.

Kicker (You may pay an additional as you cast this spell.)

Creatures you control get +1/+1 until end of turn. If this spell was kicked, instead creatures you control get +2/+2 and gain first strike until end of turn.

Trample

When Boldwyr Heavyweights enters, each opponent may search their library for a creature card and put it onto the battlefield. Then each player who searched their library this way shuffles.

, Remove a +1/+1 counter from a creature you control: Bolrac-Clan Crusher deals 2 damage to any target.

Bolt of Keranos deals 3 damage to any target. Scry 1. (Look at the top card of your library. You may put that card on the bottom.)

: Put a fuse counter on target creature.

At the beginning of your upkeep, put a fuse counter on each creature with a fuse counter on it.

Whenever a creature has four or more fuse counters on it, remove all fuse counters from it and destroy it. That creature deals 4 damage to its controller.

Until end of turn, cards you own that aren't on the battlefield lose all card types, costs, names, and abilities and become red sorceries named Missile that cost with "Missile deals 2 damage to any target."

Tap all creatures your opponents control. Creatures you control gain lifelink until end of turn.

Each player mills four cards. Return up to two instant and/or sorcery cards from your graveyard to your hand. Exile Bond of Insight.

Bonded Construct can't attack alone.

Bonded Horncrest can't attack or block alone.

: Add one mana of any color.

, : Each player who controls a permanent named Bonder's Ornament draws a card.

When Bonds of Mortality enters, draw a card.

: Creatures your opponents control lose hexproof and indestructible until end of turn.

Put any number of target creature cards from your graveyard on top of your library.

Draw a card at the beginning of the next turn's upkeep.

Whenever you discard a creature card, create a 2/2 black Zombie creature token.

Whenever you discard a land card, add .

Whenever you discard a noncreature, nonland card, draw a card.

Whenever equipped creature attacks, put four +1/+1 counters on it.

Equip (: Attach to target creature you control. Equip only as a sorcery.)

: Until end of turn, Bone Shaman gains "Creatures dealt damage by Bone Shaman this turn can't be regenerated this turn."

Flying

Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)

When Bone Shredder enters, destroy target nonartifact, nonblack creature.

Counter target creature spell.

Draw a card.

Whenever Bonecrusher Giant becomes the target of a spell, Bonecrusher Giant deals 2 damage to that spell's controller.