Only thing I can think of is like full SpDef Necrozma-Mane setting Trick Room as counterplay (it might even need some anti-type berry like Occa too )Considering the fact that Nasty Plot is a TR this gen, I simply cannot imagine Eternatus not getting it. Honestly, if that were to be the case, I really can't see it sticking around in National Dex Uber itself, let alone Galarian Uber. Considering the lowest possible SpA stat this thing can have (145), it OHKO’s every single Supportceus with +2 Life Orb Dynamax Cannon after Stealth Rock or 1 layer of Spikes, except for Fairyceus and Steelceus which get KO’d by Sludge Wave and Fire Blast respectively. It also gets additional boosts from Max Ooze, to the point where even SpD Heatran and Chansey do not stand a chance of walling this thing. On top of that, it is so bulky that even without bulk investment, it has a chance of surviving U-Necrozma’s Neuroforce Photon Geyser, which, paired with its speed, makes it extremely hard to revenge kill (both MGar and Scarf Xern do not even come close). Does anyone have an idea of how to handle this thing? I am utterly lost
Might be able to beat it with psychic stab in this scenario