I didn't say everything was repelled with no damage, my problem was with Darkwolf effectively destroy my entire planetary shield within a few hits. Almost all of the Defense stations are destroyed. A lot of warships and frigates are probably lost, and one or two of the carriers could go down soon.

And the wreck everything part was when it was only Ceramus attacking. From the page on the wikia they strongest weapons, not counting bombardment weapons, are only as strong as the hit of a rail-gun. That and they seem to lack any shield technology, as it isn't mentioned on there page at all.