msem-instigator

Choose a creature type. Return up to two target creature cards of the chosen type from your graveyard to your hand.

{T}: Add one mana of any color. Spend this mana only to cast an instant or sorcery spell.

This spell costs {2} less to cast if you control a transformed permanent.
Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

When Bridled Narwhal enters, you gain 5 life.

Prowess
Unveil {2}{U}{R} ({2}{U}{R}: Transform this. Unveil only as a sorcery.)

Lifelink
When Bright-Eyed Adventurer enters, rediscover an enchantment card. (Look at the top card of your library. You may reveal it and put it into your hand if it's an enchantment card. Otherwise, put it back or into your graveyard.)

Flying
Whenever you cast a spell from anywhere other than your hand, Brightwing Sphinx gains vigilance until end of turn.

Prowess, trample
Whenever Brilliant Diviner deals combat damage to a player, draw a card.

Flying
When Brilliant Griffin enters, target creature gets +2/+2 until end of turn.

{2}{R}, Sacrifice a creature: Target creature can't block this turn.

Choose one —
• Brimstone Cleansing deals 4 damage to target tapped creature.
• Exile target enchantment.

{T}: Brimstone Grenadiers deals 1 damage to target player.
Whenever you cast an instant or sorcery spell, untap Brimstone Grenadiers.

Invocation — Whenever you spend four or more mana to cast a spell or activate an ability during your turn, Brine Cultist can't be blocked this turn.
{5}{U}: Draw a card.

Whenever you draw a card, you may have target player mill two cards.

Destroy target creature with flying.
Draw a card.

Target creature gets +3/+0 until end of turn. Mill three cards.

Trample
When Bringer of Armies enters, recruit. (Create a 0/0 white Soldier Army creature token, then put a +1/+1 counter on each Army you control.)

Whenever Bristled Wolverine attacks, it gets +1/+1 until end of turn.

Bristling Skoki has first strike as long as it's attacking.
Whenever Bristling Skoki blocks a creature, you may have it deal damage equal to its toughness to that creature.

When Broadside Raider enters, create a 1/1 blue and red Pirate creature token with haste.

Bronze Giant has trample as long as you control a token creature.

Flash
Whenever you cast your second spell each turn, put a +1/+1 counter on Brooding Replacement.

Creatures you control get +2/+0 until end of turn. Elves and Dwarves you control gain trample until end of turn.
Foretell {1}{R} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

This spell costs {1} less to cast for each artifact and/or enchantment you control.

{6}{U}: Brume Trench-Thrasher can't be blocked this turn. This ability costs {1} less to activate for each instant and sorcery card you own in exile and in your graveyard.