Shichifukujin Dragon

Oracle Text

Shichifukujin Dragon enters the battlefield with seven +1/+1 counters on it.

RRR, Remove two +1/+1 counters from Shichifukujin Dragon: Put three +1/+1 counters on Shichifukujin Dragon at the beginning of the next end step. Activate this ability only any time you could cast a sorcery.