Basic fatigue question

[thejeff]

Gems used for the cost of the spell do not count towards boosting the level or reducing fatigue.
Each 100 fatigue is 1 gem.

So: the S7, 700 fatigue spell cannot be cast by a S6 caster.

Flaming Arrows can be cast by a F3 caster with 2 gems. 1 for the spell cost, 1 to boost him to F4. He could use a 3rd gem to reduce fatigue.

[Snacktime]

Thanks for the reply - so in order to cast the S7, 700 fatigue spell, let's say I have an S7 caster. can he do it? I guess not, because he can only use 7 gems, and those 7 are needed as the base cost of the spell, so he won't have any gems left over to reduce fatigue?

If that is the case, I guess I don't understand how a lot of the superpowered endgame spells are ever cast, except with communions.