So I've been trying to find a way to make items disappear upon a single use and I FINALLY figured it out
and I thought I'd share this knowledge with anyone else!
Basically, you can use this for literally ANYTHING! Exp, potion effects, money, etc. This does in fact require artifacts to work though. Here's what I have and I'll break it down.
HealingBook:
Id: 340
Display: 'Book of Healing'
Skills:
- potion{type=REGENERATION;duration=200;level=2} @Self ~onUse
-...
[ARTIFACTS] Single-Use Tomes/Items

Basically, you can use this for literally ANYTHING! Exp, potion effects, money, etc. This does in fact require artifacts to work though. Here's what I have and I'll break it down.
HealingBook:
Id: 340
Display: 'Book of Healing'
Skills:
- potion{type=REGENERATION;duration=200;level=2} @Self ~onUse
-...
[ARTIFACTS] Single-Use Tomes/Items