R'lyeh, City of Aeons

(R'lyeh, City of Aeons is not a spell)
At the beginning of your upkeep, put a madness
counter on target creature. Then, if there are
nine madness counters on the battlefield,
transform R'lyeh, City of Aeons.
{t}: Add {u} to your mana pool
Ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl
fhtagn... Cthulhu lies dead... at R'lyeh he dreams.