War Falcon
Creature — Bird
Flying
This creature can't attack unless you control a Knight or a Soldier.
The falcon is the picture of nobility, maintaining a regal bearing even as it conducts the bloody business of war.
Volkan Baǵa
Magic 2013 (M13)
• #38Rulings
If an effect makes War Falcon a Knight or a Soldier, it will be able to attack even if it's the only creature you control.
(wotc • 2012-07-01)
To attack with War Falcon, you must control a Knight or a Soldier when you declare attackers. Once War Falcon is attacking, it won't be removed from combat if at any point you no longer control a Knight or Soldier.
(wotc • 2012-07-01)
Rulings
If an effect makes War Falcon a Knight or a Soldier, it will be able to attack even if it's the only creature you control.
(wotc • 2012-07-01)
To attack with War Falcon, you must control a Knight or a Soldier when you declare attackers. Once War Falcon is attacking, it won't be removed from combat if at any point you no longer control a Knight or Soldier.
(wotc • 2012-07-01)