I had Emperor of Bones in play with a creature exiled and the mana to activate it's adapt ability. Opponent plays bloodbraid elf, and I click on "resolve all" to let the cascade trigger happen. Opponent cascades into Legion Extruder and he plays it targeting my emperor of bones. I was expecting priority to activate the adapt abillity, but I didn't recive it and the trigger happens without me having a chance to adapt the emperor of bones and save it. I end up losing the game because of it.