Phyrexia: All Will Be One

Atmosphere Surgeon | Creature | Phyrexian Wizard | Whenever you cast a noncreature spell, put an oil counter on Atmosphere Surgeon. Remove an oil counter from Atmosphere Surgeon: Target creature gains flying until end of turn. Activate only as a sorcery. | Campbell White

Serum Snare | Instant | | Return target nonland permanent to its owner's hand. If that permanent had mana value 3 or less, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.) | Lauren K. Cannon

Thrummingbird | Creature | Phyrexian Bird Horror | Flying Whenever Thrummingbird deals combat damage to a player, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.) | José Parodi

Voidwing Hybrid | Creature | Phyrexian Bat | Flying Toxic 1 (Players dealt combat damage by this creature also get a poison counter.) When you proliferate, return Voidwing Hybrid from your graveyard to your hand. | Abz J Harding