msem-instigator

Cadence (Whenever you cast a spell, if its mana value is greater than this creature's power, put a +1/+1 counter on this creature.)

Whenever a creature dealt damage by Rei's Betrayer this turn dies, you gain life equal to that creature's toughness.

Flash
Whenever Mischievous Capuchin or another Monk you control enters, tap target creature you don't control. If it was already tapped, it doesn't untap during its controller's next untap step.

Creatures you control have “{T}: Add {C}.”
Mirage {1}{U} (You may cast this spell as though it had flash for its mirage cost. If you do, sacrifice it at the beginning of the next cleanup step.)

As Battle for the Shield enters, choose Danuri or Fellor.
• Danuri — Soldiers you control get +0/+1 and have vigilance.
• Fellor — Warriors you control get +1/+0 and have first strike.

{T}: Target player exiles a card from their graveyard. If they do, you gain 1 life.

When Grim Festivities enters or at beginning of your upkeep, you may return a creature card from your graveyard to the battlefield under your control. If you do, each opponent may return a creature card from their graveyard to their hand.

Creatures with power less than Skull-Crowned Chief's power can't block.

Destroy target creature or planeswalker. You gain 1 life and that permanent's controller loses 1 life.

Haste
Whenever Tortle Waymaker becomes blocked, it explores. (Reveal the top card of your library. Put it into your hand if it's a land. Otherwise, put a +1/+1 counter on this creature, then you may put that card in your graveyard.)

Trample
Respawn (When this creature dies, if it attacked this turn, return it to its owner's hand.)

Trample

Flying
When Morningheart Griffin dies, return target enchantment card from your graveyard to your hand.

Create a token that's a copy of target creature you control. Exile the token at the beginning of the next end step unless Glintwing Replica was cast from exile.
Prophecy {1}{U} (Once each turn, you may exile a card with prophecy as you reveal it. When you do, you may cast it for its prophecy cost as long as it's exiled.)

Enchant creature
Enchanted creature has base power and toughness 1/1, and its activated abilities can't be activated.

This spell costs {X} less to cast, where X is the amount of life you've gained this turn.
Flying
When Angel of Sunrise enters, each opponent exiles a Spirit, Vampire, Werewolf, Zombie, or double-faced permanent they control.

When Wandering Visionary enters, draw a card.
{W}{U}{B}{R}{G}: Create a 1/1 blue Elemental creature token with flying.

Whenever Sunken One attacks, target creature defending player controls gets -13/-0 until end of turn.
Islandcycling {2} ({2}, Discard this card: Search your library for an Island card, reveal it, put it into your hand, then shuffle.)

Create a 1/1 white Bird creature token with flying.
Monument {2}{W} (You may cast this transformed from your graveyard for its monument cost. Exile it if it would leave the battlefield or not resolve.)

Flash
This spell costs {1} less to cast for each Dragon you control.
Flying

Whenever you cast an enchantment spell, you may put target creature on the bottom of its owner's library.

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

Exile target artifact an opponent controls. Until end of turn, you may cast a copy of that card. (You still pay its costs.)

When Pious Warden enters, choose one —
• Exile target creature you don't control until Pious Warden leaves the battlefield.
• Destroy target enchantment.
• You gain 5 life.

Flying
When Celebrant of Jubilation enters, untap all creatures you control.
Cycling {2} ({2}, Discard this card: Draw a card.)