Flying (This creature can't be blocked except by creatures with flying or reach.),
vigilance (Attacking doesn't cause this creature to tap.)
Silverwing Squadron's power and toughness are each equal to the number of creatures you control.
Whenever Silverwing Squadron attacks, create a number of 2/2 white Knight creature tokens with
vigilance (Attacking doesn't cause this creature to tap.) equal to the number of opponents you have.