This spell can't be countered.

Destroy target nonland permanent with converted mana cost 3 or less.

Defender; reach (This creature can block creatures with flying.)

Whenever Aether Membrane blocks a creature, return that creature to its owner's hand at end of combat.

Target creature an opponent controls deals damage equal to its power to each other creature that player controls, then each of those creatures deals damage equal to its power to that creature.

Discard two cards: Exile Anurid Brushhopper. Return it to the battlefield under its owner's control at the beginning of the next end step.

Modular 3 (This creature enters the battlefield with three +1/+1 counters on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

+1: Creatures you control get +1/+1 and gain trample until end of turn.

−1: Arlinn, Embraced by the Moon deals 3 damage to any target. Transform Arlinn, Embraced by the Moon.

−6: You get an emblem with "Creatures you control have haste and ‘: This creature deals damage equal to its power to any target.'"

Flying

Other Bird creatures get +1/+1.

Other Soldier creatures get +1/+1.

Flying

When Azor, the Lawbringer enters the battlefield, each opponent can't cast instant or sorcery spells during that player's next turn.

Whenever Azor attacks, you may pay . If you do, you gain X life and draw X cards.

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

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.

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

Enchant creature

Enchanted creature gets +2/+2 and has "Whenever this creature attacks, untap all lands you control."

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

Each creature you control assigns combat damage equal to its toughness rather than its power.

Each player separates all nontoken lands they control into two piles. For each player, one of their piles is chosen by one of their opponents of their choice. Destroy all lands in the chosen piles. Tap all lands in the other piles.

Equipped creature gets +1/+1.

As long as equipped creature is a Human or an Angel, it has vigilance.

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

, Pay 1 life: Add one mana of any color.

Whenever you sacrifice another permanent, put a +1/+1 counter on Bloodbriar.

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

, : Search your library for a card named Festering Newt or Bubbling Cauldron, put it onto the battlefield tapped, then shuffle your library.

Bojuka Brigand can't block.

Whenever Bojuka Brigand or another Ally enters the battlefield under your control, you may put a +1/+1 counter on Bojuka Brigand.

Prevent all damage that would be dealt to target multicolored creature this turn. For each 1 damage prevented this way, put a +1/+1 counter on that creature.

Flying

Whenever Brago, King Eternal deals combat damage to a player, exile any number of target nonland permanents you control, then return those cards to the battlefield under their owner's control.

Cumulative upkeep—Add . (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

At the beginning of each player's upkeep, that player may put an artifact, creature, or land card from their hand onto the battlefield.

, , Sacrifice Braidwood Sextant: Search your library for a basic land card, reveal that card, and put it into your hand. Then shuffle your library.

When you cast this spell, any player may sacrifice a creature. If a player does, counter Brain Gorgers.

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.)

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

Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.)

Sacrifice Brain Weevil: Target player discards two cards. Activate this ability only any time you could cast a sorcery.

Target player draws X cards.

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

Whenever Bramble Creeper attacks, it gets +5/+0 until end of turn.

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

Trample

Tap an untapped creature you control: Bramblesnap gets +1/+1 until end of turn.

Each other Warrior creature you control enters the battlefield with an additional +1/+1 counter on it.

Each creature you control with a +1/+1 counter on it has trample.

Trample

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

Enchant creature

Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Enchanted creature's controller can't cast creature spells.

At the beginning of each upkeep, if a player cast two or more spells last turn, transform Branded Howler.

As Brass Herald enters the battlefield, choose a creature type.

When Brass Herald enters the battlefield, reveal the top four cards of your library. Put all creature cards of the chosen type revealed this way into your hand and the rest on the bottom of your library in any order.

Creatures of the chosen type get +1/+1.

, Sacrifice Brass Secretary: Draw a card.

Brassclaw Orcs can't block creatures with power 2 or greater.

First strike

Sacrifice Brass-Talon Chimera: Put a +2/+2 counter on target Chimera creature. It gains first strike. (This effect lasts indefinitely.)

Choose a color. White creatures you control gain protection from the chosen color until end of turn.

Until end of turn, all creatures gain ": This creature deals damage equal to its power to target creature."

Equipped creature gets +2/+2 and has trample. (It can deal excess combat damage to the player or planeswalker it's attacking.)

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

Haste

When Brazen Buccaneers enters the battlefield, it explores. (Reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on this creature, then put the card back or put it into your graveyard.)

Haste

Target creature gets +2/+0 and gains fear until end of turn. (It can't be blocked except by artifact creatures and/or black creatures.)

When Breaching Leviathan enters the battlefield, if you cast it from your hand, tap all nonblue creatures. Those creatures don't untap during their controllers' next untap steps.

Creatures you control get +1/+1 until end of turn.

Fateful hour — If you have 5 or less life, those creatures gain indestructible until end of turn. (Damage and effects that say "destroy" don't destroy them.)