Does this sound okay for a build for Clawitzer?

Clawitzer @Weakness Policy
Ability: Mega Launcher
Nature: Bold
EVs: 252 HP, 126 Defense, 126 Sp. Defense, 6 Sp. Attack
Moves: Water Pulse, Aura Sphere, Heal Pulse, Ice Beam

I'd like to squeeze in Dark Pulse mainly for Aegislash, but I don't know. Suggestions?