msem-instigator

When Fungal Whomper enters, you gain 4 life.
When Fungal Whomper leaves the battlefield, germinate four times. (To germinate, put a +1/+1 counter on a creature or create a 1/1 green Saproling creature token.)

Flying, vigilance
At the beginning of your upkeep, if you have 10 or more life than your starting life total, put a +1/+1 counter on each other creature you control.

Gangling Titan has menace and deathtouch as long as there are four or more card types among cards in your graveyard.

Vigilance
Melee (Whenever this creature attacks, it gets +1/+1 until end of turn for each opponent you attacked this combat.)
Whenever an opponent attacks you, create a tapped 1/1 white Soldier creature token with melee. Exile that token at the beginning of your next end step.

{2}{G}, Sacrifice a land: Gashing Panther gains indestructible until end of turn. Tap it.

Whenever you cast a spell with mana value 5 or greater, create an X/1 red Mutant creature token with trample and haste, where X is that spell's mana value. Exile that token at the beginning of the next end step.

Motivate 3 (When this creature enters, you may motivate target creature with less power than this by putting three +1/+1 counters on it.)
When General Merthilios motivates a creature, that creature gains first strike, trample, and haste until end of turn.

When Ghastly Ferry enters, create a 1/1 white Spirit creature token with flying.
Ghastly Ferry can't be blocked except by Spirits.
Crew 1 (Tap any number of creatures you control with total power 1 or greater: This Ship Vehicle becomes an artifact creature until end of turn.)

Creatures can't attack you or a planeswalker you control unless their controller pays {2} for each of those creatures.
Creatures can't block Ghastly Scraper unless their controller pays {2} for each of those creatures.

Flash

Flying
Creatures your opponents control get -1/-0.

Trample

Haste
When Gilded Gearhulk enters, you may destroy target noncreature, nonland permanent.

Trample
Spells your opponents cast that target creatures you control cost {2} more to cast.
Whenever a creature you control attacks alone, it gets +2/+2 until end of turn.

{G}{U}: Glacier Tortoise gets +5/-5 until end of turn. Activate only once each turn.

Pressure {2}{B}{B} (You may cast this spell for its pressure cost if seven or more cards are in your graveyard.)
When Gloomtide Whelk enters, all other creatures get -4/-4 until end of turn.

Whenever Glorybound Chorister attacks, put a +1/+1 counter on each other attacking creature you control.

Flash
As an additional cost to cast this spell, sacrifice a creature or pay {2}.
Defender

This spell costs {1} less to cast for each permanent you control that's a Dragon or a Hound.
Flying, haste
Whenever Gold Retriever attacks, abound. (You may cast a nonland card that costs less than this from your hand without paying its mana cost.)

Motivate 2 (When this creature enters, you may motivate target creature with less power than this by putting two +1/+1 counters on it.)
Each creature you control with a +1/+1 counter on it has trample.

Flying, vigilance
When you unveil Graced Theurge, draw a card.

Flying
Grandstanding Huma can block only creatures with flying.
{2}{R}{R}, Exile three instant and/or sorcery cards from your graveyard: Return Grandstanding Huma from your graveyard to the battlefield tapped and attacking. Activate this ability only during your declare attackers step.

Menace

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