But you never know what coverage move it uses... so you need several different checks to one Pokemon which is centralizing. What Rocky Helmet user wants to eat an Ice Beam? Lando-T, Garchomp, Mandibuzz, etc. don't. Jut because something isn't "immortal" doesn't mean it should stay.Can it be dealt with? Absolutely.
Is it a pain in the ass? 100%.
Should you account for it every time you make a team? Yes.
That doesn't mean it's broken though. Every set it runs has a weakness. If it runs HP Ground to check it's checks, it's giving up another coverage slot. If it's choice well then just saddle up. Prediction isn't very hard. Rocky Helmet mons shut down U-Turn spam pretty well. Keep rocks on the field and he's taking about 28% each turn. That's not a sustainable pattern of living. Mixed non-choice sets are more difficult, especially if download rolls in it's favor. You're probably going to lose a Pokemon. But it's not perfect. It only has four moves slots and one of those is a choice. While a user on the first page said it doesn't suffer from 4MSS, I disagree it 100% does. This feels a lot like the Mence ban in late DPP which was fucking stupid. It's not an uncounterable Pokemon. It's good but it's mortal, just like the rest of OU. Do not ban.
It helps that it is revealed, but Douse Drive removes potential checks to Genesect whether it is revealed or not.Douse Drive Genesect is not a viable set because when Genesect enters the battle, the chat on Pokemon Showdown says Genesect (Douse Drive).