Orion, Wood Elf King
The Horn of the Wild Hunt contains a powerful bound spell. This may be cast in the magic phase so long as Orion is not fighting in hand-to-hand combat, as he needs to blow the horn to effect its magic. The spell costs no power to cast as the Horn is imbued with sufficient power to cast its spell once per turn.
When the spell is cast the magic horn blast rings throughout the forest. The closest enemy unit within 12" of Orion must take an immediate Panic test.