Aegravere, Autumnal Beauty

When this land transforms into Aegravere,
Autumnal Beauty, it becomes tapped.
{t}: Add {b} or {r} to your mana pool. If this mana
is used to cast an instant or sorcery spell, copy
that spell. You may choose new targets for the
copy.
At the beginning of each end step, if you cast an instant or sorcery spell that turn, transform
Aegravere.