Change of Heart

Gain control of target creature until end of
turn. Untap that creature. It gains Haste
until end of turn. That creature cannot be
sacrificed this turn. If this spell was cast from
your graveyard, you gain 10 life.

Flashback {w}{u}{b}{r}{g}(You may cast this
card from your graveyard for its flashback cost.
Then exile it.)