Ahn-Crop Hyjacks

You may exert Ahn-Crop Hyjacks as it attacks. When you do, each attacking Hyena and/or Jackal creature you control gains menace until end of turn. (An exerted creature won't untap during your next untap step.)
"A cackle of Hyjacks is a terrifying sight."
- Anep, vizier of Hazoret