Valeria Vita, Lady of Lunae

If there's another Grey Warden on the Battlefield
all mana costs for this card are colorless.
Life or Death (2) (This creature enters the
battlefield with two Life or Death counters. You can
spend a counter to prevent a creature of the same
type from dying. For every creature that is destroyed
with a black sorcery or instant gain one counter.)
"Failure follows me like a shadow."
—Valeria Vita