Marina Vendrell's Grimoire - (DSK) #64

Marina Vendrell's Grimoire — Duskmourn: House of Horror (DSK) #64, Rare

Type: Legendary Artifact — Book

When Marina Vendrell's Grimoire enters, if you cast it, draw five cards. You have no maximum hand size and don't lose the game for having 0 or less life.
Whenever you gain life, draw that many cards.
Whenever you lose life, discard that many cards. Then if you have no cards in hand, you lose the game.