Question

What other Pokemon do I put in the day care to get Rhyperior and Hippowdon with the curse egg move?

Comments

you would not be able to breed to get a rhyperior with the egg move curse because rhyperior i only obtained through trade.

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the rhydon would know it though

Answer 1

I'm pretty sure they're both in the ground Egg Group. If so, then you can put them in with a Smeargle that sketched it or a Torkoal, who learns it by level up.