Board Thread:Questions and Answers/@comment-26228416-20160720172137/@comment-28070813-20160720191930

Breed the Shellbeats first using Pummel + Tweedle, at the same time do T-Roxes and Clambles. You can get Pummels through breeding fails. Once everything else is done, breed drumplers nonstop on Plant, Air, and Earth island.