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

Flying

Whenever you gain life, put a +1/+1 counter on Bloodthirsty Aerialist.

Flying

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

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.")

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

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

Each noncreature, non-Equipment artifact is an Equipment with equip and "Equipped creature gets +X/+0," where X is that artifact's mana value.

Exile target creature you control, then return that card to the battlefield under its owner's control.

Draw a card.

Enchant creature

Enchanted creature gets +3/+3.

Umbra armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)

Spectacle (You may cast this spell for its spectacle cost rather than its mana cost if an opponent lost life this turn.)

Draw a card for each creature that died under your control this turn.

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.

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

, , Discard a card: Add .

When Bogardan Firefiend dies, it deals 2 damage to target creature.

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

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

, Sacrifice Boggart Loggers: Destroy target Treefolk or Forest.

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.

Target creature attacks this turn if able.

Draw a card.

Haste (This creature can attack and as soon as it comes under your control.)

Whenever Bolt Hound attacks, other creatures you control get +1/+0 until end of turn.

Bombard deals 4 damage to target creature.

: Add one mana of any color.

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

, : All creatures get -1/-0 until end of turn.

Create a tapped 4/1 black Skeleton creature token with menace. (Then exile this card. You may cast the artifact later from exile.)

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.

Flying

Corrupted — As long as an opponent has three or more poison counters, Bonepicker Skirge has deathtouch and lifelink.

Menace, indestructible

Bontu the Glorified can't attack or block unless a creature died under your control this turn.

, Sacrifice another creature: Scry 1. Each opponent loses 1 life and you gain 1 life.

Black creature spells you cast cost less to cast.

Whenever you cast a creature spell, each opponent loses 1 life and you gain 1 life.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I — Amass Orcs 1. (Put a +1/+1 counter on an Army you control. It's also an Orc. If you don't control an Army, create a 0/0 black Orc Army creature token first.)

II — Amass Orcs 2.

III — Creatures you control get +1/+0 and gain menace until end of turn.

As Boomstacker enters and whenever it attacks, stack two dice on top of it. (All dice must be stacked vertically, one on top of another.)

Boomstacker gets +1/+1 for each die in its stack.

Boomstacker attacks each combat if able.

When the stack falls, sacrifice Boomstacker.

Flash

Bestow (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)

Enchanted creature gets +4/+2.

When Borderland Ranger enters, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle.

Flying

When Boreas Charger leaves the battlefield, choose an opponent who controls more lands than you. Search your library for a number of Plains cards equal to the difference, reveal those cards, put one of them onto the battlefield tapped and the rest into your hand, then shuffle.

Vigilance

Whenever an opponent casts a spell, if no mana was spent to cast it, counter that spell.

Sacrifice Boromir, Warden of the Tower: Creatures you control gain indestructible until end of turn. The Ring tempts you.

Prevent all combat damage that would be dealt by target attacking or blocking creature this turn. If was spent to cast this spell, Boros Fury-Shield deals damage to that creature's controller equal to the creature's power.

: Add or .

, , Sacrifice Boros Locket: Draw two cards.

Battalion — Whenever Boros Strike-Captain and at least two other creatures attack, exile the top card of your library. During any turn you attacked with three or more creatures, you may play that card.

When Borrowed Time enters, exile target nonland permanent an opponent controls until Borrowed Time leaves the battlefield.

When Boseiju Pathlighter enters the battlefield, draft a card from Boseiju Pathlighter's spellbook.

Create three 1/1 colorless Thopter artifact creature tokens with flying. Surveil 2.

Sacrifice Bottle Gnomes: You gain 3 life.

This spell costs less to cast if it targets a black permanent.

Bouncer's Beatdown deals X damage to target creature or planeswalker, where X is the greatest power among creatures you control. If that creature or planeswalker would die this turn, exile it instead.

Enchant creature

Enchanted creature can't attack, block, or transform.

Sacrifice another permanent: Attach Bound by Moonsilver to target creature. Activate only as a sorcery and only once each turn.

Enchant creature

Enchanted creature can't attack or block.

Flash

Reach

Reveal the top six cards of your library. You may put a land card from among them onto the battlefield tapped and an Elf card from among them into your hand. Put the rest on the bottom of your library in a random order.

Attacking creatures you control have deathtouch.

, : Choose one —

• Put a +1/+1 counter on target creature.

• Bow of Nylea deals 2 damage to target creature with flying.

• You gain 3 life.

• Put up to four target cards from your graveyard on the bottom of your library in any order.

When Brackwater Elemental attacks or blocks, sacrifice it at the beginning of the next end step.

Unearth (: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Braided Net enters with three net counters on it.

, Remove a net counter from Braided Net: Tap another target nonland permanent. Its activated abilities can't be activated for as long as it remains tapped.

Craft with artifact

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.

Draw four cards, then put two cards from your hand on top of your library in any order.