Mages and scripted spells

[thejeff]

Very high fatigue cost also affects how high you need to boost your level to drop the resulting fatigue down below 200.
Imaginary Spell B is probably too extreme, but an A7, 7 gem spell cast by an A10 pretender with 3 boosters= A13 and an extra gem for A14 would be 87 fatigue, so it is possible even for very high gem cost spells.

More commonly it also affects how quickly communion slaves used to cast the big spells die. They are not limited to 200 fatigue.

Also, I'm not sure, but I believe the AI will use an extra gem to reduce fatigue, even if it doesn't get reduced below 200. An A10 mage casting Imaginary spell B would use 10 gems and take 300 fatigue capped to 200.

[sum1lost]

A mage will use more than 1 more than the gem cost to cast a spell, but not to increase caster level.

[thejeff]

No. A mage can only use one gem more than the gem cost. This increases his level by one for either fatigue reduction or to be able to cast the spell.

He can only do this if his level in the path is at least the total number of gems he wants to use.

Your version was prevailing opinion for quite awhile. I certainly thought so, but it was dis-proven in a long thread a few months ago.
If you can produce a counter-example, I'd love to see it.

[Kristoffer O]

> A mage can only use one gem more than the gem cost. This increases his level by one for either fatigue reduction or to be able to cast the spell.

He will use this one gem to increase his lvl. Incresed lvl increases the power of the spell and reduces fatigue as if the mage was one lvl higher.