Caranthir, The Frozen Soul

Wild Hunt (When this creature enters the battlefield if
your opponent controls a creature with a converted mana cost of five or greater you may cast a creature spell from your
hand of the same cost or less without paying its mana cost.)
Creatures spells cast using Wild Hunt have haste or hexproof. If you cast five creature spells using Wild Hunt, search your library for a creature or artifact
with converted mana cost less than eight. You may
cast that card with flash and without paying its