Innistrad: Crimson Vow

Cemetery Illuminator | Creature | Spirit | Flying Whenever Cemetery Illuminator enters the battlefield or attacks, exile a card from a graveyard. You may look at the top card of your library any time. Once each turn, you may cast a spell from the top of your library if it shares a card type with a card exiled with Cemetery Illuminator. | Uriah Voth

Jacob Hauken, Inspector | Legendary Creature | Human Advisor | {T}: Draw a card, then exile a card from your hand face down. You may look at that card for as long as it remains exiled. You may pay {4}{U}{U}. If you do, transform Jacob Hauken, Inspector. | Aurore Folny

Necroduality | Enchantment | | Whenever a nontoken Zombie enters the battlefield under your control, create a token that's a copy of that creature. | Billy Christian

Toxrill, the Corrosive | Legendary Creature | Slug Horror | At the beginning of each end step, put a slime counter on each creature you don't control. Creatures you don't control get -1/-1 for each slime counter on them. Whenever a creature you don't control with a slime counter on it dies, create a 1/1 black Slug creature token. {U}{B}, Sacrifice a Slug: Draw a card. | Simon Dominic