You can always do that later or not at all since this is only to maximize your potential in every situation
I was a believer of Dragapult ex which, according to the metagame in Japan, was going to be incredibly powerful, but has proven to be inconsistent after a few days of testing
When paired with Grass-type support that accelerates energy or provides defensive buffs, it becomes a wall that most decks struggle to climb over
Casting giant colorless creatures satisfies the Timmy in me, and the new additions to the deck are flat-out awesome
So many ideas have been tried at this point, both successfully and unsuccessfully, that we can ask more specific questions based on goals, rather than approach the concept of a Cube completely abstractly
Dusknoir is classified as a 3-Diamonds card in the Space-Time Smackdown set