Shrine of the Eternal Watcher

{t}: Add {c} to your mana pool.
{2}: Shrine of the Eternal Watcher becomes an
X/X colorless Elemental creature token until end
of turn. Where X is equal to the number of
creatures target player controls.
Overload {5} (You may activate this spell's ability for
its overload cost. If you do, change its text by replacing
all instances of 'target' with 'each'.)