Cubecraft has no idea how to balance TDef, they just throw s*** at the wall, let it dry and stink up the server for a few months then scrape it off and replace it with brand-new s***.
To be fair, at this point I wouldn’t be surprise if they intentionally do this. Sadistic ‘people’ do exist. In fact, I wouldn’t even be surprised anymore if they like the suffering of their own community so much they use the Tower Defence forum section purely to relieve their sexual frustration.
Please notice how I’m not being rude but how I consider this to be an actual reasonable explanation of cubecrafts staff current attitude and behavior.