Yoshikage Kira

Indestructible
Whenever Yoshikage Kira deals damage to a
creature or player, put a bomb counter on that creature or player. Then, Kira deals X damage to
each creature and player with a bomb counter on
it, where X is the number of bomb counters
among permanents and players.
At the beginning of you upkeep, if there are 10
or more bomb counters among permanents
and/or players, transform Yoshikage Kira