msem-instigator

Granite Sibyl enters with three +1/+1 counters on it.
Whenever another creature you control enters, move a +1/+1 counter from Granite Sibyl to that creature.

Defender
{2}, {T}, Sacrifice Granite Watchers: It deals 3 damage to target creature.

Flying
Whenever Granter of Weariness enters or attacks, you may tap target creature if its power is less than or equal to the number of Elementals you control.

Mill three cards, then you may return a creature or land card from your graveyard to your hand. (To mill three cards, put the top three cards of your library into your graveyard.)

Target creature gets -4/-4 until end of turn.

Counter target spell. If that spell is countered this way, put it on the bottom of its owner's library instead of into that player's graveyard.

Grasp of the Sands deals 5 damage to target attacking or blocking creature. Scry 1.

Flying
Deploy 3 (As this enters, you may tap any number of other creatures you control with total power 3 or more.)
When Grasping Choir enters, you may exile target creature if it's tapped or if Grasping Choir was deployed.

Menace

Reach

When Grave Reaper enters, if it wasn't cast from your hand, it gets +1/+1 until end of turn.
Unearth {B} ({B}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the end step or if it would leave the battlefield. Unearth only as a sorcery.)

Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)
When Grave Revenant enters, target opponent loses life equal to the number of creature cards in your graveyard.

Draw two cards, then discard two cards.
Investigate. (Create a colorless Clue artifact token with “{2}, Sacrifice this artifact: Draw a card.”)

As an additional cost to cast this spell, exile two cards from your graveyard with the same mana value.
Search your library for a card with the same mana value as the exiled cards, reveal it, put it into your hand, then shuffle.

When Grave Wrangler enters, you may return target creature card from your graveyard to your hand.

{T}: Add {C}.
{T}, Reappropriate: Add {B} or {G}. (Exile exactly two cards from your hand and/or graveyard.)

Destroy target creature. If you control a Wizard, put up to one target creature card from your graveyard on top of your library.

Menace
Augmented — When Gravitational Ripper enters, if you've spent {W}{U}{B}{R}{G} to cast spells this turn, target opponent sacrifices a creature. If they can't, they discard a card.

When Graygulch Drifter enters, 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.

When Graygulch Turncoat enters, 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.)

{T}: Add {C}.
{1}, {T}: Add one mana of any color.
{2}, {T}, Sacrifice Great Beyond: Draw a card.

Until end of turn, target creature gets +2/+0 and gains “When this creature dies, return it to the battlefield tapped under your control.”