So I was thinking of letting player use /thor, /burn, and others. Problem is I don't want it abused, so I thought what if I make it so that it's like an RPG and you have mana? And XP would be the perfect source of mana! So is there a plugin that will allow xp to be a command cost for essentials commands?
DrkNinja with boosCooldown you can make any command you configure cost money, but I don't think you can make it cost XP. i'd try your luck in the 'plugin requests' forum.