AD&D to Marvel

The author notes he generally doesn't use characters over 20th level so it might break down after that.

Fighting = (21-THAC0) *5
Agility = Dex*4
Strength = see chart below
Endurance = Constitution *4
Reason = Intelligence *4
Psyche = average (Int. + Wis. + Cha) *4

Remember for Fighting that is STRAIGHT THAC0; no strength bonuses or profficiency bonuses or anything. Just level per class rating.

STRENGTH CHART

(from the MSH revised/expanded chart using Fantastic, Spectacular, Sensational and Awesome)

AD&D STRENGTH MSH STRENGTH
3-5 FB
6-9 PR
10-12 TY
13-14 GD
15-16 EX
17-18 RM
18/01 - 18/75* Fantastic
18/76 - 18/99* IN
18/00 - 19 Spectacular
20-21 AM
22 Sensational
23 MN
24 Awesome
25 UN

* These stat groupings cover two AD&D strength levels. 18/01 - 18/50 and 18/51 - 18/75 for Fantastic. 19/76 - 18/09 and 18/91 - 18/99 for IN.

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