Flying This creature can't attack or block unless it has five or more +1/+1 counters on it. Whenever a creature attacks you or a planeswalker you control, put a +1/+1 counter on this creature.
原文Slumbering Dragon's second ability counts all +1/+1 counters on it, not just the ones added by its third ability.
2012/07/01
原文The +1/+1 counter is put on Slumbering Dragon before blockers are declared. This may allow Slumbering Dragon to "wake up" and block the creature that attacked and caused its ability to trigger.
2012/07/01
原文Slumbering Dragon's third ability will trigger once for each creature that attacks you or a planeswalker you control.