Some adventuring parties are made up of old friends, their common bonds bolstering them in the face of peril. Other parties simply hire the biggest, meanest muscle they can find.
Whenever this creature or another Ally you control enters, you may have this creature deal damage to target creature equal to the number of Allies you control.
"Fire is my accomplice. For enough coin, it can be yours as well."
Devoid When this creature enters, you may put a card an opponent owns from exile into that player's graveyard. If you do, return target creature to its owner's hand.
Other green creatures you control get +1/+1. Other blue creatures you control get +1/+1. Untap all green and/or blue creatures you control during each other player's untap step.
Delve Flying This creature enters with a +1/+1 counter on it for each instant and sorcery card exiled with it. Whenever an instant or sorcery card leaves your graveyard, put a +1/+1 counter on this creature.
Birds you control get +1/+1 and have vigilance. At the beginning of your end step, for each spell you've cast this turn, create a 1/2 blue Bird creature token with flying named Storm Crow.
Once the crow birdfolk realized augurs were using the shapes of their murmurations for divination, they decided to have some fun with it.
As this land enters, you may reveal a Treefolk card from your hand. If you don't, this land enters tapped. {T}: Add {W} or {B}. This land deals 1 damage to you.