XP costs for Spells

A number of existing spells require you to expend XP to
cast them. Instead of expending the amount of XP noted in each spell, multiply all of these costs by 5 and treat them instead as special material component costs.
For example, atonement can require a 500 XP expenditure to
cast the spell. In these cases, the spell requires a 2,500 gp
expenditure instead.