Alzrius
The EN World kitten
Dante raises a good point in regards to your scenario, Adslahnit. The Wizard who casts such a spell inflicts less damage, but has cast a single spell, and has a lot more. The psion, by contrast, has still paid to augment the power point cost of his powers up to 100, which is almost one-third of his total power points, since he gains no new power points after 20th level (without taking a feat to gain more). Hence, he could deal such a massively-damaging power if he wanted to, but he won't be able to keep doing that for long. Whereas the wizard is just getting started with dishing out punishing spells.
Balance is maintained regarding damage capacity over the total course of a battle.
Balance is maintained regarding damage capacity over the total course of a battle.