Mhkar, Birthright of Stone

Mhkar's power and toughness are each equal to
the number of counters among permanents you
control.
Permanents you control with flowstone counters
on them can't be destroyed except by noncombat
damage.
{t}: Put a flowstone counter on target permanent.
Mhkar deals damage equal to half its toughness,
rounded down, to any target without counters on
it and to itself.