eo-S on the other hand...well, he can carry SR, Spikes, Taunt, Magic Coat, Light Screen, Reflect, Superpower, HP Fire, Psycho Boost or Thunder(bolt).
Choose any 4 of those and you're on your way :)
Scizor gets you down? You use HP Fire.
T-tar trolls you? You use Superpower.
You want to use a cookie-cutter team of 5 sweepers? Screen dat shit and you still have the option of carrying an attack or two :D
Except you get 4 moveslots. It can't spike and sweep teams at the same time, nor can it do anything but dual screen. Once you find out what set it is, it isn't a big deal at all. Salamence can run 2 deadly sets, so can Jirachi or Reuniclus or Dragonite. It doesn't make them broken. Also, offensive teams just have Gengar as their spinblocker, meaning you can just kill deo off while it spikes and bring in starmie for the spin. Even if you have to sac it deo's entire role has been nullified. And for the last time, deo alone is not what makes the "cookie cutter sweepers" so powerful. Any screener can do that. Also for the millionith time AGAIN, randomly throwing five powerful sweepers on a team DOES NOT WORK. You actually have to team build, it is not as simple as you make it sound! !!!!!!!
One important thing that I forgot to mention is that if they invest in bulk rather than in speed like Deoxys, they must now avoid a 2HKO instead of an OHKO. This is massively important because Deoxys is so fast that all it needs to do is avoid an OHKO to get up both screens, while other Dual Screeners must avoid 2HKOs because they are outsped by moderately fast, extremely hard-hitting things, like a CB Haxorus for example.
The major thing that sets Deoxys apart from other Dual Screeners is that it can not only set up screens, but it can also lay down hazards to weaken counters, but also prevent your sweepers from getting statused or getting hazards layed down against you with Taunt.
You invest in defense rather than speed and still get 2HKOd by offensive toed in the rain. Then you also have no chance of winning the speed tie which means no hazards and no momentum. Even then it's not a big deal if a screener actually gets setup time! Uxie gets 2 screens up and it's broken? Speaking of Uxie (and Azelf too) they can set SR and stop foes from setting up on you. Latios can do all of that minus the SR and also hit hard with draco meteor and Espeon can prevent hazards while sub passing.