Clamperl is a lot better than Shellder in battle. With DeepSeaTooth, Clamperl's base Special Attack is 148. With DeepSeaScale, it has a Special Defense stat of 110. There's really no competition.Shellder. Great defense, and it has a better movepool then Clamperl... Plus it evolves into a water/ice type which gives it a great resistance to grass types. Plus, how could you like this thing?:It's so ugly, and useless, imo. I'm not a big fan of it's evo's either.