Heimdallr the Vigilant

Hexproof, Vigilance
If an opponent casts a spell or activates an ability
that contains; "destroy all", "sacrifice all",
"return all", or "exile all", exile that spell or
ability. At the beginning of the next end step,
copy each spell exiled by Heimdallr and cast
them without paying their mana cost. All
other creatures lose all abilities.