Valerian-The Divine Champion

{w}{u}{b}{r}{g}{x}{x}{t} Player gains
{x} amount of life.
When Valerian enters the battlefield
search your deck for Shadow and
place him on the battlefield.
All permanents you control
(including Valerian) are unkillable.
She can kill gods and demigods
instantly.
She was created to keep the gods in check.