Is Blacephalon GX really getting that good though? I would say that baby Blacephalon is a much better contender, because while Welder allows for some crazy extra damage output (150 extra), you're only adding damage. Blacephalon usual problems (bricking with energy, dying to Judge/Marshadow plays since they really need big hands, needing time to up their damage output), are still as present as ever. Blacephalon is still a tier 1 deck anyway, simply by number of event points and tops. I can see Baby Blacephalon variants actually overtaking the GX simply by virtue of it being a 1-prize attacker, synergizing well with Fire Crystal, Fiery Flint, Energy Recycler and also not needing to setup multiple Naganadels on bench, while also still being Beast Ring/Beast Energy compatible, and most important of all, lowering the ammount of Fire Energy needed on deck since you don't banish it. I guess we will end up seeing which variant does better.