msem-instigator

Menace (This creature can't be blocked except by two or more creatures.)
Avatar of Basat can't block.

Cast this spell only if an opponent controls two or more nonwhite creatures or you control six or more lands.
Create X 1/1 white Bird creature tokens with flying. You gain X life.

At the beginning of your upkeep, you may choose a color, then exile two cards of that color from your graveyard. If you do, return a creature, instant, or sorcery card of that color from your graveyard to your hand.

Flying
Nonartifact permanents entering the battlefield don't cause abilities to trigger.

Each player sacrifices a creature.

Destroy target nonland permanent if its mana value is less than or equal to the number of colors among spells you've cast this turn.