Creature — Spirit Avatar 3/4, {R/W}{R/W}{R/W}{R/W}{R/W} (5)
Rare
Flying
Attacking creatures you control get +2/+0.
"A great siege is a banquet to him; a long and terrible battle, the most exquisite delicacy."
—The Seer's Parables
Illus. Christopher Moeller

8/1/2008: This is a static ability. Your creatures will get +2/+0 from the moment they're declared as attackers until the moment the combat phase ends, they're removed from combat, or Nobilis of War leaves the battlefield, whichever comes first.
Legal in Vintage (Type 1)
Legal in Legacy (Type 1.5)
Legal in Classic (MTGO)
Legal in Commander
Legal in Modern