Core Set 2019

Mistcaller | Creature | Merfolk Wizard | Sacrifice Mistcaller: Until end of turn, if a nontoken creature would enter the battlefield and it wasn't cast, exile it instead. | Ryan Yee

Hungering Hydra | Creature | Hydra | Hungering Hydra enters the battlefield with X +1/+1 counters on it. Hungering Hydra can't be blocked by more than one creature. Whenever Hungering Hydra is dealt damage, put that many +1/+1 counters on it. (It must survive the damage to get the counters.) | Daarken