Refal, Undecided Fate

{w/b}Refal, Undecided Fate gains Deathtouch, Vigilence or First strike. If Refal already has one of these keywords, it loses that keyword, and gains the chosen keyword.
When a creature dealt damage by Refal this turn dies, choose one; each opponent loses life equal to its toughness, or you gain life equal to its toughness.