Martial Impetus (CLB) from Commander Legends: Battle for Baldur's Gate, available at 401 Games Canada.

• Rarity: Common
• Finish: Normal
• Artist: Brian Valeza
• Card Text:
  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.