msem-instigator

{R}, {T}, Discard a card: Draw a card.
Whenever one or more cards leave your graveyard, create a Weapon token and attach it to a creature you control. (It's an Equipment artifact token with equip {2} and “Equipped creature gets +1/+1”.)

Braineater Abominus can't be blocked by creatures with power 4 or greater.
Whenever a creature you control deals combat damage to a player, exile the top card of that player's library. You may play that card for as long as it remains exiled, and you may spend mana as though it were mana of any type to cast it.

At the beginning of your end step, if Bramblemane didn't attack this turn, transform it.

Flash
Flying
When Branu enters, return up to one other target creature you control to its owner's hand. If you do, create a token that's a copy of that creature, except it's 1/1.

Flash
When this creature enters, surveil 1, then draw a card.

Whenever this creature or another creature you control dies, this creature deals 1 damage to each opponent.

Choose one —
• Creatures you control get +2/+0 until end of turn.
• Destroy target artifact or enchantment. You gain 3 life.

When Briarswine dies, create a 2/2 green Wolf creature token.
Foreshadow {4}{G} (You may cast this spell for its foreshadow cost. If you do, also trigger its “dies” abilities when it enters.)

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

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.

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.)

Flash
Flying
When Bruna, Shepherd of Souls enters, exile target noncreature spell. Then exile its controller's graveyard.

Flash
When Brutalizer Gear enters, attach it to target creature you control.
Enchanted creature gets +3/+3 and has trample.
Equip {5} ({5}: Attach to target creature you control. Equip only as a sorcery.)

Double strike, trample
Arise {3}{R}{W} ({3}{R}{W}, Exile this from your graveyard as a sorcery: Create a black token copy of it that's also a Zombie and can't block.)
When Bugrund arises, you may put an Equipment card from your hand or graveyard onto the battlefield attached to it.

Siphon (Each -1/-1 counter you put on your creatures up to their remaining toughness while casting this pays for {1}.)
Discard up to two cards, then draw that many cards plus one.

By Blood and Fire deals 3 damage to any target. Up to one target creature seeks valor. (Give it that Oath Aura. Fulfill it by it dealing combat damage to a player to create a 2/1 white Soldier token.)

Create a 1/1 white Peasant creature token if you control a Citizen or Peasant. Then Byron's Reprisal deals damage equal to the number of creatures you control to up to one target creature or planeswalker.

Other Citizens and Peasants you control get +1/+1.
{2}{G/W}: Look at the top five cards of your library. You may reveal a Citizen or Peasant card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Invocation — Whenever you spend four or more mana to cast a spell or activate an ability during your turn, reveal the top four cards of your library. You may put a creature or land card from among them into your hand. Put the rest on the bottom of your library in a random order.

When this creature enters, if you cast it, return target permanent card with mana value 3 or less from your graveyard to the battlefield tapped.
Whenever this creature attacks, you may sacrifice a nonland permanent. If you do, it gets +1/+1 and gains indestructible until end of turn.

Vigilance
When this creature enters, you gain life equal to the greatest toughness among other creatures you control.

{T}: Add {C}.
{2}{G}, {T}: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.
At the beginning of combat on your turn, if you control ten or more lands, you may pay {3}{G}{G} and exile this land. When you do, untap any number of lands you control. They become 2/2 green Elf creatures with haste in addition to their other types.

Calamitous Flames deals 6 damage to target creature or planeswalker.
Foretell {2}{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.)

Discard your hand, then draw seven cards. When you do, you may cast a card with mana value X or less from your hand without paying its mana cost, where X is the number of card types among cards in your graveyard.

When Candlecrown Stag enters, choose one or both —
• Exile target card from a graveyard.
• You gain 3 life.