Centering is one of the factors that a cardholder has no real control over
Probably works best in Group Pain decks like Mogis, God of Slaughter and Rakdos, Lord of Riots, though those decks have access to Black so you already have great card draw
The discussion may have veered off-topic briefly, but it's interesting to consider the potential shifts in color pairings and the impact of colorless-themed sets on deck construction
Theres a tough balancing act in finding the right number of black cards to make sure you can evoke Grief on the first turn, but playing weak cards just to add more black cards to the deck is not something I really want to do
If something is also wildly powerful in the 99, or simply unfun all around, were fine leaving it on the list, but power alone isnt a reason to list it as a Game Changer
Kiki-Jiki, Mirror Breaker [The Infinite Loop Engine] Kiki-Jiki, Mirror Breaker has been enabling absurd board states for years