msem-instigator

Whenever Gravelocked Seeker blocks, return target creature card from your graveyard to the battlefield blocking a creature that's attacking you (even if that block would be illegal).

When Graygulch Drifter enters the battlefield, return target creature card from your graveyard to your hand. If that card is a Spirit, you may return an additional Spirit card from your graveyard to your hand.

When Graygulch Howler dies, you gain 1 life for each Spirit you control.

When Graygulch Lurker dies, target opponent loses 2 life.

Menace
When Graygulch Outcast dies, each opponent loses 3 life.

Haste
Whenever a player loses life, that player gains control of Graygulch Revenant.

When Graygulch Turncoat enters the battlefield, you may post a bounty on target creature. If you do, each opponent loses life equal to the number of bounty counters on creatures. (Put a bounty counter on that creature. It has “When this creature dies, each opponent draws a card” as long as it has a bounty counter on it.)

This spell costs {2} less to cast if a permanent you controlled left the battlefield this turn.
Target creature gets +3/+0 and gains trample until end of turn.

Enchant creature
Enchanted creature gets +1/-1.
When Grip of the Deadwood is put into a graveyard from the battlefield, return it to its owner's hand.

Grisly Marsh enters the battlefield tapped unless another player controls a land that could produce {B} or {G}.
{T}: Add {B} or {G}.

Destroy target tapped creature.
Orchestrate {W} (You may exile this card from your hand anytime you could cast a sorcery for its orchestrate cost. When you next resolve a spell, you may cast this from exile without paying its mana cost.)

You may put a green creature card from your hand onto the battlefield. If you do, it fights target creature you don't control.

When Gulchdrinker Serpent enters the battlefield, detain target permanent. (Until your next turn, that permanent can't attack or block and its activated abilities can't be activated.)

Untap target creature you control. It fights target creature you don't control.

[+1]: Haide Bankbuster deals 2 damage divided as you choose among one or two targets.
[+1]: Draw two cards unless any player has Haide Bankbuster deal 3 damage to them.
[–9]: Until end of turn, gain control of all permanents target player controls and they gain haste. Untap those permanents.

Haste
{2}{W}, {T}: Hair-Trigger Marshall deals 2 damage to target blocking creature.

Creatures you control have distorted. (They can be blocked by tapped creatures but not untapped creatures.)

{T}: Add {C}.
{T}: Add one mana of any color. Activate only if you have a counter.

Creatures you control get +2/+0 until end of turn. Creatures target player controls gain winnow until end of turn. (Damage dealt to it also causes its controller to lose that much life.)

Frenzy 1 (Whenever this creature attacks and isn't blocked, it gets +1/+0 until end of turn.)
Whenever Haploc Blooddrinker becomes blocked, it gains lifelink until end of turn.

Frenzy 1 (Whenever this creature attacks and isn't blocked, it gets +1/+0 until end of turn.)
Whenever Haploc Striker attacks and isn't blocked, you may cast target instant or sorcery card from your graveyard if its mana value is less than or equal to Haploc Striker's power. Exile that card instead of putting it into your graveyard as it resolves.

Whenever one or more Rogues you control attack, you may pay 1 life. If you do, draw a card.

Lifelink
{2}{B}: Target Spirit gets +1/+0 and gains lifelink until end of turn.

First strike
Whenever you discard a card, investigate. (Create a colorless Clue artifact token with “{2}, Sacrifice this artifact: Draw a card.”)

Harsh Wastes deals 3 damage to target attacking or blocking creature.