Spell Energy Cost Reduction

[Wayne]

In GURPS there is the concept of decreasing the ST requirement for spells you know really well. I assumed it was in TFT as well but can't find it. Here's the GURPS rule:

Originally Posted by GURPS

If your base skill with a spell is 15 or more – adjusted only by modifiers for sanctity, Nature’s strength, or mana, as applicable – reduce the spell’s casting cost by 1. If you have skill 20 or more, reduce cost by 2. Cost continues to decrease by 1 per full five skill levels beyond skill 20. Apply the same reduction to the cost to maintain a spell.

I think it would be reasonable to carry this over to TFT, obviously there is no such thing as skill levels so you would have to base it on IQ.

If your IQ is five greater than the spell requirement – reduce the spell’s casting cost by 1. The cost continues to decrease by 1 per each additional five IQ beyond the spell's requirement.
Apply the same reduction to the cost to maintain a spell.

If you are allowing Arcane Training then it may also be counted to decrease spell casting ST cost.

Originally Posted by hcobb

Arcane Training I through V
This represents intensive training in the arcane arts beyond the basic level known to a starting character. It costs 1000 XP for a wizard to learn (can't be taken by heroes or starting characters) and raises the wizard's IQ by one, but only for the spells he can learn, mana limit, and spell casting purposes.
This talent can taken a total of five times at 1000 XP per level.