IQ 20 fighters? Skill Points instead of IQ!
We played TFT for many years back when it was (first) new and a minor issue that we had was the drift of ever higher IQs for traditionally non-brainy character types who just wanted a few more skills. So what we did was allow characters to purchase "skill points" instead of IQ.
Each Skill Point (SP) gave you two more points to spend on skills/spells but you were still limited by your IQ as to which ones you could pick. So something with IQ 9 and SP 1 could get 11 points worth of skills/spells instead of just 9 but could only select from the IQ 9 and lower lists.
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