Mt. Ninji and Da Nice Time Kid

{2}{b/r} Add +1/+1 counters on Mt. Ninji and Da Nice Time Kid, for each Balding Witch creature you destroy this turn.
{3}{b/r}{b/r}{t} Deal {x} damage to target permanents, where {x} is the number of Rats and Ninjas you control.
All Rats and Ninjas get +2/+0 when attacking and have shroud.