I don't use class skills with this idea in mind: even the most hardened Tank may very well spent some time studying Art.
I like having the option to have archetypal type characters that have twists to them, without having to worry about IF they can do it, or do it well.
On the mechanics side, I don't think that how to do cross class skills is well explained within the Core Modern20. If that is cleaned up and explained concisely I wouldn't use it, but it would be good for the rules themselves.
Thats partly because I believe Modern20 has relied on someone knowing d20 rules instead of assuming no prior knowledge of d20. It is frustrating as a purchaser to not have all the rules adequately explained within the book, but have to purchase or look elsewhere to obtain that information. (yes I am looking at spells, while I don't mind that I have to use the
SRD to get spells, I wish that were specifically told, so I wouldn't have to guess where to get spells.)
With all that criticism however I would note that Modern20 is my favorite version of d20 so far, and I actually enjoy making full characters using the rules.
Which from me is a compliment.
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