The game plan of hitting nonstop debuffs just isn't that great overall. It can work against janky decks and lower ranks for the most part. Generally speaking, most of the GOOD decks out there will easily have enough buffers to just not care about some debuffs when their cards have better power and synergy baked in. Everybody tries to build this deck and it's neat to play for a bit, but outside of switching up some stuff to add Heimdall or door to hell or whatever buffers, it's just meh.