CooMasterCoo 21
This thing can hit like a truck! I have tested it a few times and had a ton of fun with not having to pay for most damage. Having resources open for other great upgrades is like a weight being lifted off my chest.
MVP so far has been Enrage for that turn one 3 cost upgrade. It's a hard choice because first turn Dug In/Enrage is fantastic.
Give it a shot and let me know!