Considering that exiling things is pretty easy to do nowadays, Ketramose can easily turn into a card advantage engine
Critical Bloom is an admittedly expensive attack, costing four Energy Tokens a pop, but remember the Crimson Blaze Ivysaur its the perfect set-up card for this, helping with Energy management nicely
Optimally, this should be used on Gizmek Orochi, a Gandora monster, or a Level 8 Danger
There's a fantastic article on the logistics of such a cube called - The Proper Way To Do Two-Player Cube Drafts, where the author breaks it down in great detail, and I suggest you check it out
While many of those were good additions, we swung the pendulum a little too far in the direction of too many Game Changers
I recently stumbled upon Melek, Reforged Researcher as an option that I really like, so that's the reason for writing this quick primer