Replacement for Resonance for permanent magic items

[Kringress]

Here is a suggestion that I think will work.

You have 7 permanent magic item slots. These can be used for any non-one shot consumable items (ammunition/potions/oils/scrolls). You get a slot at these levels: 1, 3, 4, 6, 7, 9, and 10. Additionally one half of each bonus in Charisma will either add or subtract a slot. (+2 Charisma will get an additional slot, +4 Charisma will get 2 slots, etc.)

This would allow for 1-2 weapons, armor, shield, and 3-4 pieces of other gear.