Defiant Greatmaw
Amonkhet — uncommon
Creature — Hippo
Defiant Greatmaw rulings:
2017-04-18: If you put enough -1/-1 counters on Defiant Greatmaw so that its toughness is 0 or less, its last ability triggers.
2017-04-18: If a creature with wither or infect deals damage to a creature, the controller of the creature with wither or infect puts that many -1/-1 counters on the second creature.