Colophos

Colophos enters the battlefield tapped.
{t}: Add {c} to your mana pool.
{2}{c}, {t}, Sacrifice Colophos: Copy target instant
or sorcery spell you control. You may choose new
targets for the copy.
{4}{c}, {t}, Sacrifice Colophos: Put a token onto the
battlefield that's a copy of target creature you
control.