Innistrad: Crimson Vow

Consuming Tide | Sorcery | | Each player chooses a nonland permanent they control. Return all nonland permanents not chosen this way to their owners' hands. Then you draw a card for each opponent who has more cards in their hand than you. | Viko Menezes

Mirrorhall Mimic | Creature | Spirit | You may have Mirrorhall Mimic enter the battlefield as a copy of any creature on the battlefield, except it's a Spirit in addition to its other types. Disturb {3}{U}{U} (You may cast this card from your graveyard transformed for its disturb cost.) | Justine Cruz

Overcharged Amalgam | Creature | Zombie Horror | Flash Flying Exploit (When this creature enters the battlefield, you may sacrifice a creature.) When Overcharged Amalgam exploits a creature, counter target spell, activated ability, or triggered ability. | Mike Jordana

Grolnok, the Omnivore | Legendary Creature | Frog | Whenever a Frog you control attacks, mill three cards. Whenever a permanent card is put into your graveyard from your library, exile it with a croak counter on it. You may play lands and cast spells from among cards you own in exile with croak counters on them. | Simon Dominic