Board Thread:General Discussion/@comment-70.36.73.200-20130217040126/@comment-3153244-20141020022933

It's only the $30,000 of 'other towers' that adds blades, not "tier 4 tower" as you said. This can even be $30,000 of 0/0 Dart Monkeys, if you can fit that many.

Sun beams are improved by any sacrifice.