Martial Impetus
Enchantment - Aura
(CMC 3)
Enchant creature
Enchanted creature gets +1/+1 and is goaded. (It attacks each combat if able and attacks a player other than you if able.)
Whenever enchanted creature attacks, each other creature that's attacking one of your opponents gets +1/+1 until end of turn.
- [MKC] Murders at Karlov Manor Commander #72 (U)