Skittering Plauge

Mutate 3 (When you cast this spell, put three time counter on your mutation pool. At the beginning of your upkeep, remove a time counter.)
Create a 1/2 green Spider with reach and deathtouch.
When the last time counter is removed from your mutation pool, if Skittering Plague is in your graveyard, return it from your graveyard to your hand.