Angel of Fortress Windkeep

Flying, vigilance
When Angel of Fortress Windkeep enters the
battlefield, create a 4/4 white Angel creature
token with flying and vigilance.
Retreat {2}{u}. (When Angel of Fortress Windkeep
deals combat damage, you may pay {2}{u}. When you
do, return Angel of Fortress Windkeep to its owner's
hand.)