Need help with obelisk reward choice

[ganjatron]

I think there are a few worthy skills on Mind, but I'm playing on normal and don't really see the value of those gold making skills. I already have 2/2 Reserve, might go for full 3/3 Glory and Tolerance as I've recently liked using necromancers and might be getting some demons soon for my army. I usually use Red, Green, and Black Dragons with my other 2 slots switching between Necros, Shaman, Cyclops, Royal Thorns, and possibly some demons soon. Only the shaman seem to be affected by negative morale so I don't know if I want to fully invest in it yet.

8 defense would be nice so im leaning that way because I already have the skills I really want. Only problem is that shields can be replaced and I'll be kicking myself if I find a better shield whereas extra skills pay long term dividends. I already completed the elven part so I may be nearing the end of the game though and this all may be moot.