Horn of Valhalla

Horn of Valhalla: There are four varieties of this magical device. Each appears to be a normal instrument until its command word is spoken. Then, each summons a number of berserkers from Valhalla to fight for the character who summoned them by blowing the horn. Each variety of horn can be blown just once every seven days. The type of horn, its powers, and who is able to employ it are determined by rolling 1d20 and consulting the table below.
Any character whose group is unable to employ a particular horn of Valhalla will be attacked by the berserk fighters summoned when the character blows the horn.
Summoned fighters are Armor Class 4, have 6 hp points per die, and are armed with sword and spear (50%), or battle-axe and spear (50%). They gladly attack anyone the possessor of the horn commands them to fight, until they or their opponents are slain, or six turns have elapsed, whichever occurs first.
Fully 50% of these horns are aligned and will summon only fighters of the horn's alignment. A radical alignment difference will cause the horn blower to be attacked by the fighters.
D20 Roll	Type of Horn	Berserk FightersSummoned	Usable By
1-8 	Silver 	2d4+2 2nd level 	any group
9-15 	Brass 	2d4+1 3rd level 	P, Wi, R
16-18 	Bronze 	2d4 4th level 	P, Wa
19-20 	Iron 	1d4+1 5th level 	Wa
Category:DMG Magic Items
Category:Magic Items
Category:Magic Musical Instruments