Quoted By:
Compared to Cloyster:
Regular Blastoise:
Lower Atk, same SpA, more special bulk, lower physical bulk, inferior offensive typing, inferior ability, marginally faster.
This is frankly underwhelming. Blastoise arguably has better coverage (Earthquake, Aura Sphere) but the lack of Skill Link moves really hurts. It's generally a lot weaker than Cloyster as a sweeper. I don't think it would bring it out of RU (same tier as Cloyster).
Mega Blastoise:
Mega Blastoise's stats are generally better, and it has a pretty solid ability which can compete with Skill Link, but it can't hold an item, so no White Herb or Life Orb or whatever, which seriously holds it back. It still is generally more powerful, faster, and/or more bulky than Cloyster, depending upon Cloyster's item choice. A Cloyster with a Z-move or Life Orb hits harder, while a White Herb one is physically bulkier (but not specially bulkier).
Mega Blastoise has an easier time setting up, but the lack of a secondary STAB gives it a hard time breaking through things like Mega Venusaur (Icicle Spear still OHKOs at +2, while nothing Blastoise has does, though Dark Pulse comes close, and has a good chance to OHKO after rocks). Generally, I'd say it's more reliable, and it may even be bulky enough to get to +4 under certain specific situations (aurora veil or screens). I don't think it would be broken, but it would be good.
