Senna, the Redeemer

Lifelink (Damage dealt by this creature also causes
you to gain that much life.)
—
Cursed from childhood to be haunted by the supernatural Black Mist, Senna joined a sacred order
known as the Sentinels of Light, and fiercely fought
back - only to be killed, her soul imprisoned in a
lantern by the cruel wraith Thresh. But refusing to lose
hope, within the lantern Senna learned to use the
Mist, and reemerged to new life, forever changed.