MP

MP is a homebrew stat that everyone has. It starts at 5 and can be increased by spending 3 XP. Every time MP reaches a new multiple of 10, the cost per MP increases by 1. Example: Increasing from 19 to 20 MP costs 3 XP, but increasing from 20 to 21 HP costs 4 XP. MP is used up when casting Spells. It can be regained from a rest or a MP potion or some other ability.