Tamnuhan, Ancestors' Grounds

Whenever you cast a spell, put a rite counter on
Tamnuhan, Ancestors' Grounds.
{t}: Add {c}.
{8}, {t}, Remove ten rite counters from
Tamnuhan and exile it: Create a legendary 15/15
red, green and white Spirit Avatar creature token
named The Great Ancestor with first strike,
trample, and ward {8}.