Ahsoka, Rebel Legend

If this card is in your hand, you may reveal it and
pay {1}: Shuffle this card into your library, then
draw 1 card.
While this card is on the battlefield, your first
Promote costs {3}less.
Whenever you Promote, create a 1/1 white Clone
Trooper with first strike.
If this card was promoted, it gains protection from instants, sorceries,
red and black sources, double strike and lifelink.