msem-instigator

{T}: Choose a color of a card in your graveyard. Add one mana of that color.

When Bloodpact Tormentor enters, you may put a -1/-1 counter on target creature.
Bloodpact Tormentor can't be blocked by creatures with counters on them.

{1}, {T}, Pay 1 life: Put a +1/+1 counter on target creature you control.
{T}, Remove a counter from a permanent you control: Draw a card.

This spell costs {1} less to cast for each creature that attacked this turn.

Other Warriors you control get +2/+0.
Whenever a Warrior you control dies, Bloodshed Devotee deals 1 damage to target opponent.

{2}, {T}, Sacrifice a creature: You draw a card and you lose 2 life.
{1}, {T}, Exile a creature card from your graveyard: You gain 2 life.

Equipped creature gets +1/+1 for each charge counter on Bloodstained Knife.
{2}, Sacrifice a creature: Put a charge counter on Bloodstained Knife.
Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)

{T}: Another target Warrior you control gets +1/+0 and gains haste until end of turn.

Trample
Bloodthirsty Berserkers can't be blocked by more than one creature.

At the beginning of your first main phase, add an amount of {G} equal to Bloomhorn's power.

Blooming Vista enters tapped.
{T}: Add {R} or {G}.
{1}, {T}: Add one mana of any color.

When Blossom-Ash Trance enters, you gain 3 life.
At the beginning of each end step, if you gained 3 or more life this turn, draw a card.

Target creature you control gets +2/+2 and gains hexproof until end of turn.

Dominance — If you control the creature with the greatest power or tied for the greatest power, you may pay {U} rather than pay this spell's mana cost.
Counter target spell unless its controller pays {3}.

First strike
{T}: Bogclaw Sniper deals 2 damage to target blocking creature.

({T}: Add {U} or {R}.)
Boiling Ridge enters tapped.
Cycling {2} ({2}, Discard this card: Draw a card.)

Target creature you don't control fights target creature you control, then fights up to one other target creature you don't control.

When Bone Pit Raptor enters, other creatures you control get +1/-1 until end of turn.
Revive {2}{R} ({2}{R}, Exile this card from your graveyard: Create a token that's a copy of it except it has no mana cost. Revive only as a sorcery.)

Paranoia—Exile a creature card from your graveyard. (You may cast this spell for its paranoia cost when a permanent you control leaves the battlefield.)
Equipped creature gets +2/+0.
Equip {1}

As long as an opponent has two or fewer cards in their hand, Bonespitting Monstrosity gets +2/+2 and has menace and “Whenever Bonespitting Monstrosity attacks and isn't blocked, create a 1/1 black Skeleton creature token.”

Slipstream (This creature can't be blocked as long as only creatures with slipstream are attacking.)
Sacrifice Bonetooth Darter: Counter target instant, planeswalker, or sorcery spell unless its controller pays {1}.

You may pay {1}{B} and tap an untapped Shaman you control rather than pay this spell's mana cost.
Target player sacrifices a creature. You gain life equal to its toughness.

This spell costs {2} less to cast if you control a creature with power 4 or greater.
Bonk deals 4 damage to any target.

If casting this spell causes a triggered ability of its target to trigger, that ability triggers an additional time.
Target creature gains first strike until end of turn.

When Border Seeker dies, search your library for a basic land card, put it onto the battlefield tapped, then shuffle. Then you gain 1 life for each land you control.