Skryre is frontloaded with pretty much all the strongest units of the Skaven roster right now, you have very little reason to build anything else. That CA also gave the Plagueclaw, the better of the two artillery pieces Skaven have access to, to Skryre is complete overkill and unnecessary. I created a simple mod that moves the Plagueclaw to the second tier of the Pox Cauldron chain and the Warp Lightning Cannon down to the first tier of the Construction Cavern. https://steamcommunity.com/sharedfiles/filedetails/?id=2177591861
Please, CA, consider incorporating this change into the main game as well as making Skryre not the no-brainer choice for all Skaven campaigns!