msem-instigator

Armed — Beragnian Blacksmith can't attack unless it's equipped.
When Beragnian Blacksmith enters, you may pay {2}. If you do, arm it. (Create a colorless Equipment artifact token with “Equipped creature gets +1/+0” and equip {2}, then attach it to this creature.)

Whenever you cast a noncreature spell, target player mills two cards.
{U}: This creature gets +1/-1 until end of turn.

You may reveal a Knight or Soldier card from your hand as you cast this spell. If you do or you control one as you cast it, you may cast it as though it had flash and it can't be countered.
Exile target nonland permanent with mana value 3 or less.

Blazing Offerings deals 4 damage to target creature or planeswalker.

When this creature enters, create a 1/1 white Peasant creature token.
{W}, {T}: Tap target creature with power X or less, where X is the number of creatures you control.

This spell costs {1} less to cast for each card in your graveyard.
Arise {9}{B}. This ability costs {1} less to activate for each other card in your graveyard. ({9}{B}, Exile this from your graveyard as a sorcery: Create a black token copy of it that's also a Zombie and can't block.)

Blessed Barrage deals 5 damage divided as you choose among any number of attacking or blocking creatures.

Reach
When this creature enters, put a -1/-1 counter on a creature you control.

Blighted Unicorn can't block.
Ride {3}{B} ({3}{B}: Transform this and attach it to target creature you control without a Steed. Ride only as a sorcery.)

When this creature enters, put two -1/-1 counters on a creature you control.
{B}: Target creature with a counter on it gains deathtouch until end of turn.

{T}: Add {C}.
Dominance — {1}, {T}: Blistering Boneyard deals 1 damage to each opponent. Activate only if you control the creature with the greatest power or tied for the greatest power.

When Bloodbriar Acolyte dies, draw a card. Each opponent loses 1 life.

Trample
{T}, Sacrifice another creature: You gain 3 life.
Whenever another creature you control dies, put a +1/+1 counter on Bloodbriar Archdruid.

Deathtouch
{T}, Sacrifice another creature: Add two mana of any one color.

This spell costs {1} less to cast for each creature with one or more counters on it.
Flying, vigilance

Enchant creature
When Bloodbriar Blessing enters, draw a card.
Enchanted creature gets +2/+2 and has menace.

Sacrifice another creature: Put a +1/+1 counter on target creature you control. Activate only as a sorcery.

Siphon (Each -1/-1 counter you put on your creatures up to their remaining toughness while casting this pays for {1}.)
Bloodfall deals 8 damage divided as you choose among up to eight targets. If you spent exactly {R} for this spell's mana payment, it deals 8 damage to each of those targets instead.

Bloodsand Gulch enters tapped unless you control another Desert.
{T}: Add {B} or {R}.

When Bloodsoaked Blades enters, creatures you control get +2/+0 until end of turn.
Equipped creature gets +1/+1.
Equip {1}

When this enchantment enters, target creature you control 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.)
Whenever you fulfill an Oath of a Knight or Soldier, create a 1/1 black Bat creature token with flying and “This creature can't block.”

Enchant land
Enchanted land has “{T}: Each opponent loses 2 life.”

Haste
Bloodvenge Berserker doesn't untap during its controller's untap step.
Once each turn, when an opponent is dealt damage by another source you control, you may untap Bloodvenge Berserker.

Haste
When this creature enters, exile any number of noncreature, nonland cards from your graveyard. When you do, it gets +1/+0 for each card exiled this way until end of turn.
Arise 2R ({2}{R}, Exile this from your graveyard as a sorcery: Create a black token copy of it that's also a Zombie and can't block.)

Blooming Needles enters tapped unless you control another Desert.
{T}: Add {R} or {G}.