Tadhiel, Peace Bringer

Flying, Lifelink
When Tadhiel, Peace Bringer enters the battlefield, creatures you control gain flying and lifelink until the end of the turn.
{x}{w/u}{w/u}{t}:Exile up to X creatures to create X 2/2 soldier creature tokens with vigilance. If X is 10 or more, double the number of tokens created.