The warrior helm (e) was a Fremennik helm that had been enchanted to hold summoning scrolls by Pikkupstix. To wear a warrior helm (e), a player needed 30 Summoning and 45 Defence and had to have completed The Fremennik Trials.
Up to 70 summoning scrolls could be stored in a warrior helm (e), creating a warrior helm (charged). To charge a warrior helm (e), one simply had to use the scrolls they wanted to store on them. This would only work with combat-oriented scrolls.
Concept art of the helmet
All Junk chance: 50.5
Junk chance: 50.5