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.

Target creature attacks this turn if able.

Draw a card.

Destroy all Islands.

Bojuka Bog enters the battlefield tapped.

When Bojuka Bog enters the battlefield, exile target player's graveyard.

: Add .

Backup 1 (When this creature enters the battlefield, 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.

You may look at the top card of your library any time.

You may play lands and cast spells from the top of your library. If you cast a spell this way, pay life equal to its mana value rather than pay its mana cost.

, Sacrifice ten nonland permanents: Each opponent loses 10 life.

: Bold Impaler gets +2/+0 until end of turn.

Trample

When Boldwyr Heavyweights enters the battlefield, 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.

Double strike, trample

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.)

This spell costs less to cast if you control a creature with power 4 or greater.

Change the target of target spell or ability with a single 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 of your library.)

Flying

Whenever another creature enters the battlefield under your control, target creature gets +2/+0 until end of turn.

Haste

Whenever Bomat Courier attacks, exile the top card of your library face down. (You can't look at it.)

, Discard your hand, Sacrifice Bomat Courier: Put all cards exiled with Bomat Courier into their owners' hands.

Target creature you control gets +1/+1 and gains hexproof until end of turn. The Ring tempts you. (A creature with hexproof can't be the target of spells or abilities your opponents control.)

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."

When Bond Beetle enters the battlefield, put a +1/+1 counter on target creature.

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.

Return target creature card from your graveyard to the battlefield. It gains haste until your next turn.

Defender, haste

: Draw a card, then discard a card.

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 the battlefield, draw a card.

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

Whenever Bone Dancer attacks and isn't blocked, you may put the top creature card of defending player's graveyard onto the battlefield under your control. If you do, Bone Dancer assigns no combat damage this turn.

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

, : The next time a source of your choice would deal damage to you this turn, prevent that damage. Exile cards from the top of your library equal to the damage prevented this way.

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

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

When Bone Pit Brute enters the battlefield, target creature gets +4/+0 until end of turn.

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 the battlefield, destroy target nonartifact, nonblack creature.

Counter target creature spell.

Draw a card.

, Sacrifice Bonecaller Cleric: Return target creature card from your graveyard to the battlefield. Activate only as a sorcery.

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

Flying, first strike

At the beginning of your upkeep, exile the top two cards of your library. You may play them this turn. If you exiled a land card this way, create a 3/1 red Dinosaur creature token. If you exiled a nonland card this way, create a Treasure token.

Flying

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

Flying

Threshold — As long as seven or more cards are in your graveyard, Boneshard Slasher gets +2/+2 and has "When Boneshard Slasher becomes the target of a spell or ability, sacrifice it."

All Sliver creatures get +2/+0.

When Boneyard Aberration dies, exile it. If you do, conjure three cards named Reassembling Skeleton into your graveyard.

Mutate (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

Whenever this creature mutates, return target permanent card from your graveyard to your hand.

Exile up to five target creature cards from graveyards. An opponent separates those cards into two piles. Put all cards from the pile of your choice onto the battlefield under your control and the rest into their owners' graveyards.

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

Reach

When Bonny Pall, Clearcutter enters the battlefield, create Beau, a legendary blue Ox creature token with "This creature's power and toughness are each equal to the number of lands you control."

Whenever you attack, draw a card, then you may put a land card from your hand or graveyard onto the battlefield.

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

Until end of turn, whenever a player casts an instant or sorcery spell, that player copies it and may choose new targets for the copy.

Any player may have Book Burning deal 6 damage to them. If no one does, target player mills six cards.

(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.

Trample

When Bookwurm enters the battlefield, you gain 3 life and draw a card.

: Put Bookwurm from your graveyard into your library third from the top.

, , Sacrifice Boom Box: Destroy up to one target artifact, up to one target creature, and up to one target land.

Return target permanent to its owner's hand.