by Teacup on Feb 15, 2018
Leyline of Evolution
If Leyline of Evolution is in your opening hand, you may begin the
game with it on the battlefield.
Whenever you cast a spell, you may exile it.
As long as a card exiled with Leyline of Evolution has flying, creatures you control have flying. The same is true for first strike, haste, lifelink, menace, prowess, and vigilance.