So is anyone using any hero abilities other than UL?
I'm experimenting with Divine Movement right now with a Valkyrie combined with Sea Serpents. The thought is in a water/swamp heavy map this group can get around quickly.
Pathfinding would seem to be useful in heavy Hills/Forest/Swamp maps, but usually you are producing units that will accommodate the group move.
Pillage seems like a waste to me. I haven't played enough to see if increasing intelligence is worthwhile or not.