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>Nooo i don't want to die to a water move!!!
Have you tried switching out into a water resist/immune pokemon so your Rock/Ground mon isn't going to get fucked up?
Rhyperior has seen great success this generation because it turns out that Rock/Ground is a stupidly good STAB combination and with the addition of Heat Crash, Rhyperior is nigh unwallable and 2shots everything in sight.