@grumpygamer I think the general.approach is to consider base stats to be an accumulation of everything you're wielding/wearing/drinking/whatever, as well as character stats. So if your char is level 30, you're wearing armour that adds 20 and a sword that adds 50, and you drink a damage potion that temporarily adds 5, then your base isn't the 30 or the 100, it's the 105 until the pot runs out. Multipliers then work on top of that base, so a 2x magic spell would give you 210.