Symbiotic Mold

Soulbond.
Trample, Defender.
Symbiotic Mold gets +1/+1 for each spore
counter on it.
As long as Symbiotic Mold is paired with another creature, both creatures can attack as though
they didn't have defender, and have: "At the beginning of your upkeep, put a spore counter
on this creature."