Gisela, the Broken Blade

Legendary Creature — Angel Horror

Flying, first strike, lifelink At the beginning of your end step, if you both own and control Gisela, the Broken Blade and a creature named Bruna, the Fading Light, exile them, then meld them into Brisela, Voice of Nightmares.

She now hears only Emrakul's murmurs.