Bask in Light

You gain 1 life for each {w} spent to cast Bask
in Light, then target player loses 1 life for
each {b} spent to cast Bask in Light.
Flashback—{x}{w}{w}{b}, Pay 4 life. (You may
cast this card from your graveyard for its flashback cost. Then exile it.)
Very reinvigorating.