Shelena, Markov Descendant

Vitalize {b/r} (At the beginning of combat on
your turn, you may pay {b/r}. If you do, this creature gains flying until end of turn if you
control a creature with flying. The same is true
for first strike, double strike, deathtouch, haste, hexproof, indestructible, lifelink, menace,
reach, trample, and vigilance.)
{1}{w}: Regenerate Shelena and another
target creature.