msem-instigator

Putrid Corcass enters tapped. When it enters, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)
{T}: Add {B} or {G}.

Your opponents can't gain life.
If a source you control would deal damage to an opponent, it deals that much damage plus 1 instead.
{3}{R}: Transform Pyromantic Duo. Activate only if it's attacking.

Flying
When Pyromanticore enters, it deals X damage to target creature or planeswalker an opponent controls, where X is your devotion to red. Excess damage is dealt to that permanent's controller instead. (Each {R} in the mana costs of permanents you control counts toward your devotion to red.)

Reach
Stampede — Whenever Qasali Quiverguard and a creature with greater power attack, untap all attacking creatures.

Target creature gets +2/+2 until end of turn. If it's multicolored, it also gains indestructible until end of turn.

Lifelink
Rafiq the Magnanimous has double strike as long as it's attacking.
Whenever Rafiq the Magnanimous attacks, if it's enchanted, equipped, or was the target of a spell or ability you controlled this turn, draw a card.

Target creature gets +2/+0 and gains trample and haste until end of turn.
Cycling {2} ({2}, Discard this card: Draw a card.)

Lifelink
When Ravenous Tarwurm enters, you may have it consume. When you do, destroy target creature with toughness 3 or less and you gain 3 life. (To consume, sacrifice another creature or exile a creature card from your graveyard.)

Exile the top two cards of your library. Until the end of your next turn, you may play those cards.

Choose one or both —
• Destroy target enchantment.
• Return target artifact card from your graveyard to your hand.

Destroy all monocolored creatures.

At the beginning of combat on your turn, you may have Regurgitator Ooze consume. If you do, it gets +2/+2 until end of turn. (To consume, sacrifice another creature or exile a creature card from your graveyard.)
When Regurgitator Ooze dies, return a card exiled with it to its owner's hand.

Reinbreaker Behemoth attacks each combat if able.

Counter target creature spell.

When Resting Tombs enters, exile target creature an opponent controls until this enchantment leaves the battlefield.
If a creature would die, exile it instead.
{3}{B}{B}: Exile all creature cards from all graveyards. Transform Resting Tombs. Activate only as a sorcery.

At the beginning of your end step, put a creature card that's exiled with this enchantment onto the battlefield under your control. That creature becomes a 1/1 Spirit creature in addition to its other types and gains flying and “If this creature would die, put it on the bottom of its owner's library instead.”

Embellish {5}{U} (If you cast this spell for {5}{U}, create a 1/1 blue Thopter artifact creature token with flying when it enters.)
Retinue Golem gets +1/+1 as long as you control another artifact.

As long as there are three or more creature cards in your graveyard, Returned Minotaur gets +1/+1 and has menace.

Other Humans you control get +1/+1.
Whenever Righteous Chaplain or another Human you control enters, tap target creature an opponent controls.

{T}: Add one mana of any color. Activate only if you control a multicolored permanent or there is a multicolored card in your graveyard.

Enchant creature you control
When Rise of Heroes enters or enchanted creature dies, search your library for a creature or planeswalker card with mana value 3 or less, reveal it, put it into your hand, then shuffle.
Enchanted creature gets +1/+1 for each creature and/or planeswalker you control.

Reach
Risen Lumberknot gets +5/+5 as long as you control eight or more lands.
Invocation — Whenever you spend four or more mana to cast a spell or activate an ability during your turn, untap all lands you control. This ability triggers only once each turn.

Until end of turn, target creature gains deathtouch and “When this creature dies, return it to the battlefield tapped under its owner's control with a +1/+1 counter on it.”

Trample
When Rosenhulk enters, choose one —
• Create two 0/1 green Plant creature tokens with “{T}: Add {G}.”
• Destroy target artifact or enchantment.
• Rosenhulk fights target creature an opponent controls.