: Adapt 1. (If this creature has no +1/+1 counters on it, put a +1/+1 counter on it.)
Whenever one or more +1/+1 counters are put on this creature, it gains double strike until end of turn.
: Adapt 1. (If this creature has no +1/+1 counters on it, put a +1/+1 counter on it.)