PLEASE PLEASE PLEASE DO NOT QUOTE THE FIRST POST. I beg you, edit your post and get rid of the filler garbage.
On your set you'll probably be 2HKO'd before Blastoise can take advantage of Aqua Ring/Rain Dance (Plus Rain Dance is asking for an opponent to use Thunder), because Blastoise does not get swift swim to benefit from Rain and does not have excellent HP to benefit from Aqua Ring, so it's useless.
To be honest, your and Hypnotists' movesets seem a little bit too stall-esque. I think it was Surgo that mentioned a week or so ago that most Pokemon won't last more than 3 rounds in play before they're either KO'd or need to switch- Blastoise is no exception.
On the Toxi-coat set that Hypnotist made, Toxic is sort of redundant, even when paired with Protect- here is the most likely scenario:
Turn 1:
You toxic opponent.
Opponent attacks Blastoise for whatever damage.
(Turn order can and probably will be reversed, most OUs outspeed Blastoise)
You recover HP from Leftovers
Turn 2:
You (predictably) use protect.
Opponent does whatever, possibly even switches.
Turn 3:
You have to either predict a physical or special attack, and use Counter/Mirror Coat accordingly. If you're somehow magically not KO'd, you either OHKO back, or get KO'd and have done essentially nothing but uselessly poisoned an opponent.
It's depressing, I know, but stalling is becoming a last-gen trend.
