Shrodinga's Biomass-Teleporter

Sacrifice a food or a creature: Add {r}{r}. Put a
charge counter on this permanent. Activate only
once each turn.
{3},remove a charge counter from this permanent:
Exile target creature. Toss a coin: if heads, it's controller creates two token that are a copy of it.
If there are 4 charge counters on this permanent,
it deals 5 damage to each creature and player. Sacrifice it.