Then they switch out to Scizor who Bullet Punches you before you can even Baton Pass
ninjask @leftovers
4 HP 252 Def 252 Spe
jolly nature
mean look
sub
baton pass
spore
-no need for attack EVs because you dont have an attack....after leftovers, non-CB bullet punch from scizor needs to do max damage to not let you be able to set up a sub after you spore it.
you either sub or mean look first round
if they switch and you meanlooked, you're fine. CB Scizor's BP will only do a max of 90% to you, non-CB adamant Mamoswine does a max of 81% (CB Mamoswine WILL kill you though...)
so what have we learned? Only thing that stops ninjask is an ice shard backed by STAB 591 attack (Scizor's ice shard does slightly more than 75%) Even CB Jolly weavile doesn't kill 70% of the time.
But what if we sub first? If the opponent attacks then you spore next round. Then you sub again (now at 62.5% and 3 speed boosts). They switch then you can bp next turn to something that counters their switch (hopefully, it wont even break the sub) even if it does, you are at 100% with +3 speed and hopefully this pokemon also has bp and maybe acid armor or nasty plot and bp.
Really, if they switch and you sub, you win the match because then you meanlook or spore the switch in (if the ice shard can actually kill you, then you have to spore...but only a select few pokemon can do that.) and can then setup indefinitely on the pokemon by having a team full of spore-ers.
-flareon or arcanine with sacred fire isn't even bad, flash fire exists (now, 100% burn with jirachi--that's pretty broken)
-belly drum aqua jet isn't THAT bad compared to bulky ninjask....because it needs that turn to belly drum, which can be incredibly difficult--especially when people are expecting to see belly drum coming
-slaking with explosion isn't that bad (the CB should make it kill anything taht isn't ghost type) but it can't sweep you and you can kill it because any sweeper you want can now have close combat, like that +3 metagross from the ninjask...
anything involving a OHKO move and no guard isn't bad because of the OHKO Clause...
What about a Scizor:
@Life Orb
Adamant 252 Atk 252 HP (or some other bulky set thing....)
Swords Dance
Ice Shard
Mach Punch
Bullet Punch
After a Swords Dance Ice shard becomes a physical blizzard and mach punch is a priority version of close combat. All this backed up by 394 attack.
-Ice shard kills a 228 Bold Zapdos after SR damage
-Kingdra needs a Def investment in the 100+ range with a +def nature and in the 150-200 range without one. In order to not get 2HKO'd by mach punch and ice shard, scizor can take considerable damage if it's bulky enough so you would probably need to waste 2 pokemon to take it out...