Unvali Determination

Put X 1/1 white Lowborn creature tokens onto
the battlefield tapped.
Until your next end step whenever a creature you control dies gain 1 life.
"They kept coming. Volley after volley didn't seem to
phase them. They kept coming. They climbed over the
bodies of their dead. They kept coming. Then they
reached our line and tore my comrades limb from limb.
I ran and they kept coming."
—A Kastrian deserter on the battle of Unvik