msem-instigator

Flying
Whenever Entali Aeromancer attacks, Elementals you control gain flying until end of turn.

This spell can't be countered.
Draw a card for each different mana value among nonland permanents you control.

Double strike, menace
{R}{W}, Exile Picturesque Champion from your graveyard: Target creature you control gains double strike and menace until end of turn. Activate only as a sorcery.

Search your library for a basic land card, reveal it, put it into your hand, then shuffle.(Cast a copy of this spell once while this creature is on the battlefield.)

Enchant creature
Enchanted creature gets +2/+2.
Whenever an enchanted creature you control deals combat damage to a player, you may put a permanent card from your graveyard on top of your library.

Harmony — Germinate. (Put a +1/+1 counter on a creature or create a 1/1 green Saproling creature token.)
When Woopip Chef enters, harmonize. (Trigger up to one harmony of one permanent you control.)

Inquirer, Roaming Rover attacks each combat if able.
Whenever Inquirer deals damage to an opponent, draw a card.

Ferocious — Whenever a creature with power 4 or greater you control enters, Mieng, Who Dances With Dragons becomes a 4/4 Dragon creature with flying until end of turn.

{T}: Add {C}.
{T}: Add one mana of any color among creatures and planeswalkers you control.
{T}: Target player may gain control of target permanent you own. (That player may choose not to.)

Whenever Moon-Scarred Tuzi attacks, target creature in its pack gains first strike until end of turn. (Two or more creatures you control with equal power are in a pack.)

Discard a card: Bloodshot Berserker gets +1/-1 until end of turn. Any player may activate this ability.

Breach (Whenever this deals combat damage to a player, you may have it become an Aura Curse until your next turn. Attach it to that player.)
At the beginning of your end step, each cursed opponent loses 1 life. You gain life equal to the life lost this way.

Destroy target artifact. Scry 1.

Flying
When Namuzzar's Iterator enters, you may return an artifact or enchantment you control to its owner's hand.

Flash
When Twisted Speaker enters, return target spell to its owner's hand. That spell's controller loses 2 life.

Stampede — Whenever Nacatl Skirmisher and a creature with greater power attack, creatures you control get +1/+0 until end of turn.
{R}, Sacrifice Nacatl Skirmisher: Destroy target artifact.

{2}{B}, Sacrifice another creature: Each opponent discards a card. Activate only during your turn.
When this creature dies, exile target card from a graveyard. You may play that card for as long as it remains exiled. If you cast a spell this way, pay life equal to its mana value rather than paying its mana cost.

When Specialized Training Dummy enters, choose a card name.
Other creatures you control with the chosen name get +1/+1.

You gain life equal to the number of creatures you control.
Each opponent loses life equal to the number of creatures they control.
Destroy all creatures, then exile all graveyards.

Once each turn, you may cast a creature spell with mana value less than or equal to the number of names noted for Genetic Breakthrough without paying its mana cost.
{G}, Sacrifice a nontoken creature with a name not noted for Genetic Breakthrough and note its name: Draw cards equal to the sacrificed creature's power, then discard two cards.

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.

{T}: Add {C}.
Tap an untapped creature you control: Kurayami Shrine becomes a 1/1 Spirit creature with deathtouch until end of turn. It's still a land.

Once each turn, when a player casts a spell, you may choose two target players. Each of those players exiles cards from the top of their library until they exile a nonland card with mana value less than that spell's. They may cast those cards without paying their mana cost. Then they put the rest of the exiled cards on the bottom of their library in a random order. (The active player puts their spell on the stack first.)

Look at the top three cards of your library. Put two of them into your hand and the rest into your graveyard. You lose 2 life.

Deathtouch