[tehy]

With lefties ditto, you've basically got to switch into them, and then have the same pokemon, which means... you can be statused quite easily, while the opponent had the original advantage, being in a mirror match with a 1-move advantage. Meanwhile, the best-case scenario is that you both do the worst thing possible to each other-say,toxic. Sitrus berry is a nice bluff, but it's not really that useful of an item, while lefties can't bluff but is the most useful. He can outstall walls infinitely, but he has to keep switching out, which means that the wall can smack someone else as he comes in. Meanwhile, the opposing stall team is most likely aware of whatever pokemon they have most acutely, and has made sure to have great counters/checks to them. Eviolite walls are rare? I feel like tangela would have something to say about that. Copying a pokemon that's no good without eviolite means you're no good yourself. You yourself mention alomalola-what is lollier than an alomalola that isn't even that good defensively? You're setup bait AND killbait. And your passed wishes are weaker.

Life orb gives a 30% boost to power, and detracts 10% hp. As long as the attack does a little bit more than 30%, having LO is better than not having it. Leftovers skews it a little harder, but if the attack does >50%, the LO gives him the advantage.

You used scarf ditto as shell smash bait? Oh, no! Whatever WILL they do. Oh, hey scarf ditto... well, crap. The only thing you can really reliably set up on a scarf ditto is either bulkier boosts, or hazards.
As for salac berry... how do you "almost always" manage to get down to <25% hp?


Edit: Or it'll leave you... dead... And why use a lefties ditto as a revenge killer? Might as well just flip coins and have done with it. (Same goes for sitrus)

You're right, it is a piece of cake. Know what's not a piece of cake? When he switches in later and steals your boosts.

Copying his SR user is fine, but that means you'll only have a spinner if he does (And if he does, it's a much greater chance he'll have an accompanying spinblocker.) As for the wishpassing... again, copying alomalola means you have something with no offensive presence and rather little defensive presence. Wishpassing is not "Free", because you have to switch the passee into whatever powerful attack i'm about to use, or give me setup turns. Meanwhile, you just recovered 35% hp in two turns, not the most efficient idea. Also, now you get to replace SR? Great! So you get 1 more moveslot at the cost of a pokemon, good plan!

What sweeper cannot KO ? Serously, it's mostly those that resist their own type, and if they can't ko themselves... you don't force them out, the epitome of a coin toss. Unless they have a boosting item, in which case they win. As for red card ditto... you set up to plus four? Fine, but you still have trouble Koing the copied pokemon. And all your attacks have 5 PP, so walls have the option of stalling you out rather easily. Not to mention it only works once and then it's back to the mirror match.

So basically, ditto does nothing against tangela except either put it to sleep or get slept? Good to know. Oh yeah, and in a 1v1, tangela pwns ditto-tangela because of eviolite. So if you can switch to a steel-type and wall it, cool for you, but then ditto's just a pivot switch, and not a great one, either.