Halaster, Mad Mage

ElderRunes-Whenever you cast a noncreature spell you may Venture into the dungeon. If it would be put into the graveyard on the same turn it is cast, you may exile it instead. When you complete a dungeon you may cast that card without paying it's mana cost and then exile it after casting it this way.
At the end of your turn, deal damage each other player equal to the number of times you Ventured into the Dungeon thi