Flying

Whenever a Dragon you control dies while Boneyard Scourge is in your graveyard, you may pay . If you do, return Boneyard Scourge from your graveyard to the battlefield.

Destroy all creatures. Lands you control don't untap during your next untap step.

Return target permanent to its owner's hand.

Draw four cards.

Cycling (, Discard this card: Draw a card.)

When Boonweaver Giant enters, you may search your graveyard, hand, and/or library for an Aura card and put it onto the battlefield attached to Boonweaver Giant. If you search your library this way, shuffle.

Trample

Whenever Borborygmos deals combat damage to a player, put a +1/+1 counter on each creature you control.

Trample

Whenever Borborygmos Enraged deals combat damage to a player, reveal the top three cards of your library. Put all land cards revealed this way into your hand and the rest into your graveyard.

Discard a land card: Borborygmos Enraged deals 3 damage to any target.

Whenever you cast a silver-bordered spell, put a +1/+1 counter on Border Guardian.

Whenever you cast a black-bordered spell, Border Guardian can't be blocked this turn.

Whenever you cast a white-bordered spell, Border Guardian gains double strike until end of turn.

Flying

: Boreal Griffin gains first strike until end of turn. ( can be paid with one mana from a snow source.)

Whenever Boromir, Gondor's Hope enters or attacks, look at the top six cards of your library. You may reveal a Human or artifact card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Boros Garrison enters tapped.

When Boros Garrison enters, return a land you control to its owner's hand.

: Add .

: Target creature gains haste until end of turn.

: Target creature gains first strike until end of turn.

Escalate (Pay this cost for each mode chosen beyond the first.)

Choose one or both —

• Creatures you control get +2/+0 until end of turn.

• Creatures you control get +0/+2 until end of turn.

Borrowing the East Wind deals X damage to each creature with horsemanship and each player.

Trample

, Sacrifice an artifact: Bosh, Iron Golem deals damage equal to the sacrificed artifact's mana value to any target.

Trample

When Bottle Golems dies, you gain life equal to its power.

When Boulderbranch Golem enters, you gain life equal to its power.

//PRT-Prototype_Mech//

Prototype (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.)

3/3

Enchant permanent

Enchanted permanent can't attack, block, or crew Vehicles, and its activated abilities can't be activated unless they're mana abilities.

Whenever Bounding Felidar attacks while saddled, put a +1/+1 counter on each other creature you control. You gain 1 life for each of those creatures.

Saddle 2 (Tap any number of other creatures you control with total power 2 or more: This Mount becomes saddled until end of turn. Saddle only as a sorcery.)

Flash

Reach

Target creature gets +3/+3 until end of turn.

Target creature gets +3/+3 until end of turn.

Target creature gets +3/+3 until end of turn.

Roll a six-sided die. Create a number of 1/1 red Goblin creature tokens equal to the result.

Brackish Trudge enters tapped.

: Return Brackish Trudge from your graveyard to your hand. Activate only if you gained life this turn.

While voting, you get an additional vote. (The votes can be for different choices or for the same choice.)

Read ahead (Choose a chapter and start with that many lore counters. Add one after your draw step. Skipped chapters don't trigger. Sacrifice after III.)

I — You may sacrifice a creature. If you do, each opponent discards a card.

II — Return target creature card from your graveyard to your hand.

III — Target opponent may sacrifice a nonland, nontoken permanent. If they don't, they lose 2 life and you draw a card.

When Brain Maggot enters, target opponent reveals their hand and you choose a nonland card from it. Exile that card until Brain Maggot leaves the battlefield.

Flying

At the beginning of your end step, exile the top card of each opponent's library. You may play those cards for as long as they remain exiled. If you cast a spell this way, you may spend mana as though it were mana of any color to cast it.

Whenever a nonland permanent an opponent owns enters the battlefield under your control, they lose life equal to its mana value.

Whenever another nontoken creature enters, you may pay . If you do, that creature's controller creates a token that's a copy of that creature.

Whenever you expend 4, Raccoons you control get +1/+1 and gain vigilance until end of turn. (You expend 4 as you spend your fourth total mana to cast spells during a turn.)

: Add .

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.)

When Branch of Vitu-Ghazi is turned face up, add two mana of any one color. Until end of turn, you don't lose this mana as steps and phases end.

Choose one or both —

• Branching Bolt deals 3 damage to target creature with flying.

• Branching Bolt deals 3 damage to target creature without flying.

Flying

Brass Gnat doesn't untap during your untap step.

At the beginning of your upkeep, you may pay . If you do, untap Brass Gnat.

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

Whenever Brawl-Bash Ogre attacks, you may sacrifice another creature. If you do, Brawl-Bash Ogre gets +2/+2 until end of turn.

Flash (You may cast this spell any time you could cast an instant.)

When Breaching Hippocamp enters, untap another target creature you control.

: Target creature with power 2 or less gains haste until end of turn and can't be blocked this turn.

Target creature an opponent controls deals damage equal to its power to another target creature that player controls. The Ring tempts you.

You may cast Breaking Wave as though it had flash if you pay more to cast it. (You may cast it any time you could cast an instant.)

Simultaneously untap all tapped creatures and tap all untapped creatures.

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

Breath of Darigaaz deals 1 damage to each creature without flying and each player. If this spell was kicked, it deals 4 damage to each creature without flying and each player instead.

Flying, lifelink

Whenever Breathless Knight or another creature you control enters, if that creature entered from a graveyard or you cast it from a graveyard, put a +1/+1 counter on Breathless Knight.

At the beginning of your upkeep, sacrifice Breeding Pit unless you pay .

At the beginning of your end step, create a 0/1 black Thrull creature token.

Flying

Whenever a player attacks one of your opponents, if that opponent has more life than another of your opponents, that attacking player draws a card and you put two +1/+1 counters on a creature you control.

Bretagard Stronghold enters tapped.

: Add .

, , Sacrifice Bretagard Stronghold: Put a +1/+1 counter on each of up to two target creatures you control. They gain vigilance and lifelink until end of turn. Activate only as a sorcery.

Whenever Briarbridge Patrol deals damage to one or more creatures, investigate. (Create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

At the beginning of each end step, if you sacrificed three or more Clues this turn, you may put a creature card from your hand onto the battlefield.

Equipped creature gets +2/+0. It gets an additional +0/+2 and has first strike as long as an Equipment named Groom's Finery is attached to a creature you control.

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

Target creature you control gets +2/+2 until end of turn. It fights up to one target creature you don't control. (Each deals damage equal to its power to the other.)

Destroy target attacking creature.

Draw a card.

Each Fungus and Saproling you control has ": Add ."

At the beginning of your end step, create a 1/1 green Saproling creature token.

Radiance — Brightflame deals X damage to target creature and each other creature that shares a color with it. You gain life equal to the damage dealt this way.

: Brightling gains vigilance until end of turn.

: Brightling gains lifelink until end of turn.

: Return Brightling to its owner's hand.

: Brightling gets +1/-1 or -1/+1 until end of turn.

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, double the number of +1/+1 counters on target creature. That creature can't be blocked by creatures with power 2 or less this turn.