This was the first thing I built after unlocking Tennokai, and I have to say, after seeing a heavy attack orange crit for 13 million, I figured I had to share.

[Dreamer's Wrath] is the core focus of this with Tennokai. No arcane, so feel free to slot whatever you'd like. [Amalgam Organ Shatter] should be run, as you will be heavy attacking far more often, and you can afford to lose the 5% crit damage since [Dreamer's Wrath] is already giving you more total damage on your heavies anyway.

How do you use it? Well, just start swinging, build combo, and wait for that little Tennokai icon to show up; then press your heavy key and watch your screen evaporate. Have fun!