Francene, Guardian of Legions

Haste, Hexproof, Flying, Lifelink
{u}{r}: Regenerate target creature
{p/u}{p/r}: Target creature phases out
Whenever a creature dies, you may return it to
the battlefield under your control with a
Valhalla counter on it.(It gains Flying)
If a creature would die while it had a
Valhalla Counter on it,exile it instead.