Jeleva, Nephalia's Scourge

FlyingWhen Jeleva, Nephalia's Scourge enters the battlefield, each player exiles the top X cards of his or her library, where X is the amount of mana spent to cast Jeleva.Whenever Jeleva attacks, you may cast an instant or sorcery card exiled with it without paying its mana cost.

Flying
When Jeleva enters, each player exiles the top X cards of their library, where X is the amount of mana spent to cast Jeleva.
Whenever Jeleva attacks, you may cast an instant or sorcery spell from among cards exiled with Jeleva without paying its mana cost.