Bellowing Aegisaur

Creature — Dinosaur

Enrage — Whenever Bellowing Aegisaur is dealt damage, put a +1/+1 counter on each other creature you control.

3/5

2017-09-29:
If another creature you control is dealt lethal damage at the same time that Bellowing Aegisaur is dealt damage, the other creature won’t be saved by the +1/+1 counter that would have been put on it.
2018-01-19:
If multiple sources deal damage to a creature with an enrage ability at the same time, most likely because multiple creatures blocked that creature, the enrage ability triggers only once.
2018-01-19:
If lethal damage is dealt to a creature with an enrage ability, that ability triggers. The creature with that enrage ability leaves the battlefield before that ability resolves, so it won’t be affected by the resolving ability.