So what is Pythium's weakness?

[Psitticine]

One thing I like about Golden Age Arco a lot is the Skeptic. It's fun to tear down other people's dominion, especially when it is an especially dangerous one like Carrion Woods or either of the two toxic Ermor themes.

Uhm. Pythium expands as fast as a Elephant nation. Principes along with Theurg/Arch-Theurgs with their javelins and tower shields make for strong expanders that have good reinforcement capability because of the Stratmove of 2, the only thing they are not good at taking out are HCav/Knights, which is just fine.