Sir Callahan The Awoken

Purity(This card can only be the target of white spells or abilities)
Rally(creatures that attack with this card gain +1/+1 & gain first strike)
When Sir Callahan enters the battle field, draw a card, if it's white, summon X 1/1 soldier tokens onto the battlefield, where X is your devotion to White.
"You....WHAT?!" -sir Callahan