If you had to 1 vs 1 100 different, random Pokemon, which Pokemon would you choose (rules in post)?

[OoDex]

The ruleset is quite simple:
-no legendaries, mythical and battle beast
-You are only allowed to use a single Pokemon

ANYTHING else is allowed that you can think of, as long as you can do it in the usual Pokemon Games (refering to moves a Pokemon can't learn).

I had a discussion about this before and Smeargle@Focus Sash with Spore, Endeavour and Bullet Punch came up, but I see this dying randomly to status effects/weather in at least some of these 100 1 on 1 battles.

Something like King's Rock + guaranteed multi hits seems very strong, but again the goal is to win 100, so chances will eventually ruin that run.

 

[Kaif]

here before post was locked

 

[PartMan]

Greninja, easy.

 

[Camden]

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