Elidyr, the Fallen

Fungus you control have: "{t}, Exert this creature: Put a spore counter on target creature."
Creatures you control have: "Remove three spore counters from this creature: Create a
1/1 green Saproling creature token."
{b/g}: Regenerate Elidyr, the Fallen.
Sacrifice three Saprolings: Create a Fungus creature token.