Entropus, Galactic Horror

Hexproof
Whenever you or a permanent you control becomes the target of a spell or ability, you and each player
that didn’t control that source exiles cards from the top of their library until they exile a card that shares a type with that spell or the source of that ability. Each player that did may cast that card without paying its mana cost. Put all cards you exiled this way on the bottom of your library.
You may play lands and cast spells exiled with Entropus.