Instant and sorcery spells you cast cost less to cast.

Whenever a spell or ability you control counters a spell, you may draw a card. If you do, discard a card.

Discard a card at random: Barbarian Bully gets +2/+2 until end of turn unless a player has Barbarian Bully deal 4 damage to them. Activate only once each turn.

, : Choose a land type. Target creature you control gains snow landwalk of the chosen type until end of turn. Return that creature to its owner's hand at the beginning of the next end step. (It can't be blocked as long as defending player controls a snow land of that type.)

, Sacrifice Barbarian Lunatic: It deals 2 damage to target creature.

, Sacrifice Barbarian Riftcutter: Destroy target land.

Indestructible

When Barbed Servitor enters, suspect it. (It has menace and can't block.)

Whenever Barbed Servitor deals combat damage to a player, you draw a card and you lose 1 life.

Whenever Barbed Servitor is dealt damage, target opponent loses that much life.

All Sliver creatures have ": This creature gets +1/+0 until end of turn."

First strike, haste

Whenever a player taps a land for mana, if Barbflare Gremlin is tapped, that player adds one mana of any type that land produced. Then that land deals 1 damage to that player.

Haste

Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.)

Changeling (This card is every creature type.)

Reach

: Put target card from your graveyard on the bottom of your library.

Barkhide Troll enters with a +1/+1 counter on it.

, Remove a +1/+1 counter from Barkhide Troll: Barkhide Troll gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)

Whenever one or more tokens you control enter, create a 1/1 black Vampire Rogue creature token with lifelink. This ability triggers only once each turn.

, Sacrifice another creature or artifact: Draw a card.

Baron Von Count enters with a doom counter on "5."

Whenever you cast a spell with the indicated numeral in its mana cost, text box, power, or toughness, move the doom counter one numeral to the left.

When the doom counter moves from "1," destroy target player and put that doom counter on "5."

, Sacrifice an artifact: Barrage Ogre deals 2 damage to any target.

Barrenton Cragtreads can't be blocked by red creatures.

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for .)

Barricade Breaker attacks each combat if able.

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

At the beginning of your upkeep, sacrifice Barrow Ghoul unless you exile the top creature card of your graveyard.

When Barrow Witches enters, return target Knight card from your graveyard to your hand.

When Barrowin of Clan Undurr enters, venture into the dungeon. (Enter the first room or advance to the next room.)

Whenever Barrowin of Clan Undurr attacks, return up to one creature card with mana value 3 or less from your graveyard to the battlefield if you've completed a dungeon.

When Bartered Cow dies or when you discard it, create a Food token. (It's an artifact with ", , Sacrifice this artifact: You gain 3 life.")

Sacrifice another creature or artifact: Put a +1/+1 counter on Bartolomé del Presidio.

Wurms you control get +2/+2 and have trample.

, : Create a 4/4 green Wurm creature token. This ability costs less to activate, where X is the greatest power among Wurms you control.

, Sacrifice Basal Thrull: Add .

Basalt Golem can't be blocked by artifact creatures.

Whenever Basalt Golem becomes blocked by a creature, that creature's controller sacrifices it at end of combat. If the player does, they create a 0/2 colorless Wall artifact creature token with defender.

Flying

Players can't cast spells during combat.

: Target creature attacks this turn if able.

When Basilica Bell-Haunt enters, each opponent discards a card and you gain 3 life.

Flying

Extort (Whenever you cast a spell, you may pay . If you do, each opponent loses 1 life and you gain that much life.)

Flying

Whenever Basilica Stalker deals combat damage to a player, you gain 1 life and surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

Disguise (You may cast this card face down for as a 2/2 creature with ward . Turn it face up any time for its disguise cost.)

Devoid (This card has no color.)

: Adapt 1. (If this creature has no +1/+1 counters on it, put a +1/+1 counter on it.)

Whenever one or more +1/+1 counters are put on Basking Broodscale, you may create a 0/1 colorless Eldrazi Spawn creature token with "Sacrifice this creature: Add ."

: Basking Rootwalla gets +2/+2 until end of turn. Activate only once each turn.

Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Vigilance, protection from multicolored

When Basri's Lieutenant enters, put a +1/+1 counter on target creature you control.

Whenever Basri's Lieutenant or another creature you control dies, if it had a +1/+1 counter on it, create a 2/2 white Knight creature token with vigilance.

: Bastion Mastodon gains vigilance until end of turn.

Flying

At the beginning of each end step, if an opponent lost 3 or more life this turn,

Augment (, Reveal this card from your hand: Combine it with target host. Augment only as a sorcery.)

Create a Treasure token. (Then exile this card. You may cast the creature later from exile.)

Battered Golem doesn't untap during your untap step.

Whenever an artifact enters, you may untap Battered Golem.

First strike

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

At the beginning of combat on your turn, Battering Ram gains banding until end of combat. (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's blocking.)

Whenever Battering Ram becomes blocked by a Wall, destroy that Wall at end of combat.

Bloodthirst 1 (If an opponent was dealt damage this turn, this creature enters with a +1/+1 counter on it.)

Creatures with power less than Battering Wurm's power can't block it.

Creatures you control have ": Add . This mana can't be spent to cast a nonartifact spell."

Whenever you cast an artifact spell with mana value 6 or greater, draw a card.

As long as you control a red or white permanent, Battle Brawler gets +1/+0 and has first strike.

Destroy target artifact. (Then exile this card. You may cast the creature later from exile.)

Trample

Whenever a permanent you control becomes the target of a spell or ability an opponent controls, you may draw a card.

Foretell (During your turn, you may pay and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

Sliver creatures you control get +2/+0.

, : Each opponent loses 2 life. This ability costs less to activate for each creature card in your graveyard.

Flying

Battlefield Percher can block only creatures with flying.

: Battlefield Percher gets +1/+1 until end of turn.

You may exert Battlefield Scavenger as it attacks. (It won't untap during your next untap step.)

Whenever you exert a creature, you may discard a card. If you do, draw a card.

Each instant and sorcery spell you cast costs less to cast for each creature it targets.

Heroic — Whenever you cast a spell that targets Battlefield Thaumaturge, Battlefield Thaumaturge gains hexproof until end of turn.