Scuttlegator
Ravnica Allegiance — common
Creature — Crab Turtle Crocodile
Scuttlegator rulings:
2019-01-25: You can always activate an ability that will cause a creature to adapt. As that ability resolves, if the creature has a +1/+1 counter on it for any reason, you simply won’t put any +1/+1 counters on it.
2019-01-25: If a creature somehow loses all of its +1/+1 counters, it can adapt again and get more +1/+1 counters.