The Horn of the Edge of Time

This large black horn is made of a dense wood of unknown origin and encircled with thick gold bands engraved with Dwarven runes.

Only a Fighter (or B/X style Dwarf, Elf, etc.) may use the Horn and usually has only one opportunity to do so. A Fighter who raises the Horn with the intent to use it, will immediately know why this is so and may choose not to follow through with their decision.

Upon sounding, the Horn will summon a number of Warriors from the Edge of Time, as follows:

If the user's level is 1-5, then the Horn will summon 1d4 5th lvl Fighters for every three foes present, to a maximum of 3d4.

If the user's level is 6-8 then the Horn will summon 1d4 5th lvl Fighters for every three foes present, to a maximum of 6d4.

If the user is 9th level or higher, then as above, except the maximum number summoned is 15d4, unless the number of foes exceed 25,000 and there are a significant number of outer planar powers present on the battlefield, such that the battle might be considered of apocalyptic import. In which case, the full compliment of Warriors will be summoned to the battle field and their exact number is left to the Referee to determine.

In the aftermath of any of the above cases, if all of the warriors are slain by foes or accidental friendly fire, then the user may retain the Horn and activate it again at a later date, assuming he survives.

Otherwise, if the user and at least one of the Warriors are still standing, then the user is instantly slain and must accompany the surviving Warriors to the Edge of Time and join their number. The Horn will then teleport to a random location in the multiverse, unless seized by a Dwarf who was an ally of the previous user, within 1d2 rounds.