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So does Toxic Boost + Guts stack?
Also, CritDra is pretty fun in this meta. Everyone expects the typical SwiftDra + Thick Club so it's a one-time gimmick but it is pretty much the only other way to bypass Unaware sets apart from Mold Breaker stuff. Also makes Draco Meteor pretty spammable, as...
I've been killing it with Refrigerate (Enigma berry) Extreme Speed Entei, a very common AAA mon, and doing okay.
It's very Hax-y but any Electric type with decent SpD can wall it out because it'll also be immune to Twave. Giving any Rock Type Sand Stream is going to also wall it to no end...