'Tis true enough, NGD rarely if ever reveals the exact mechanics/formulas in use. The placard-descriptions of spells aren't always correct/current. For example, Colossus grants barbs +50% strength @ level 5, & this ='s roughly a net increase of
50+ points of strength, so someone please explain to me how my blunt-wielding barb only gains about
50 extra damage when I previously used that spell. Barb str-damage bonus =
2 damage per point-of-str, so it
should be around
100 extra damage per hit, yet it is only
1/2 that (go figure?....). It is what it is.