Ellissence's Aura

Enchant permanent
At the beginning of each end step, note all types
and subtypes of enchanted permanent. If you
control any untapped lands, you may attach
Ellissence's Aura to target permanent.
{p/c}{u}{p/r}{g}, {t}: Target permanent of a noted type
is no longer that type, and enchanted permanent
is, in addition to its other types. (Creatures with
no defined power and toughness are considered 0/0's.)