Board Thread:General Discussion/@comment-23.240.83.248-20141016042954/@comment-24.91.227.252-20141227154131

Personally, I'm a fan of the Ring of Fire upgrade because when there's 2 or 3 combined, it's absolutely insane. It's also a great value, being one of the cheapest Tier-4 upgrades there is. However, two or three Blade Maelstroms are very useful in later levels, specifically for Hard Difficulty.