Quickness + Frozen Heart will rout most PD indescriminately. I don't know what you are thinking, or of you've even tried it. Probably not, or you did against say Jotunheim, which isn't exactly the best choice in the world to try to Frozen Heart. The only ones that ever give you much problems are the ones with fliers (Harpies and such), and those give Seraphs just as many problems.

Re: Seithkona. Guess you've never really felt the effects of a truly devistating wave of Nether Darts.

I've done it quite a few times. Seraphs are not stealthy. Seraphim don't have 1A, so I don't know what your comment about stealth is.

Caelum is not the "PD killer" that you want to make it out to be for it's paths, rather because of it's ability to drop into the back row and take provinces that are not in the direct front line?

I imagine Stormbinder, that you are, once again, putting your vast inexperience to the masses. Otherwise you might be moaning about Theurgs, or any other low air unit, water unit, or death unit. It's amazing the amount of people who cry nerf for any other nation than Pythium, which is by and large an absolute beast.

Maybe you need to extend your nation choices to include other nations than Van and Caelum.