Another thing that can be done is consider the three primary skill attributes of: Strength, Intelligence, and Dexterity. And while dexterity is mildly useful on its own... each of them are pretty much useless except in the proper classes hands.
So we currently have ideas for Cross Class weapons, armor, and accessories.
So here is something else. Currently there is a Talent that gives you one additional attribute point.
Well... Why not expand on those specifically for cross classes?
Examples?
-Thoughtful Training (Talent): Req 10 Intelligence: Gain 2 Strength. Not Compatible with attribute boost
or alternatively
-Mage Knight (Talent): Req None: Gain 1 Strength and 1 Intelligence. Not compatible with attribute boost
Or there is also
-True Shadowblade (Talent): Req 3 Witchcraft, 3 Scoundrel: Gain 1 Int, 1 Two weapon Fighting
Or if that is a bit too much for you then there is:
-Bag of Tricks (Talent): Req Two opposing skills at rank 3: You gain a 10% bonus to skills with decreased potency, at level 10 this becomes 20%, up to the minimum.
