This should give a 10 heart boost in any inventory slot (or at least in the main or off hand), right? Absolutely nothing happens. I've even tried with equipable items and the All slot is a no-go. What's going on with this function?
Code:
HeartStone:
Id: 331
Data: 0
Display: '&cHeart Stone'
Lore:
- '&6Boosts maximum health'
Attributes:
All:
Health: 20