"Again, I beat your mon before it can do anything to mine. Freeze, use Blizzard against them both-then use Hidden Power Electric to fry that Shellder! Finish with Bug Buzz!
Flare...just use Yawn at close range against Shellder, then fire a Will O' Wisp for some bonus status! If you're still able to battle, use Flame Burst directly into Shellder's mouth!"