lol I'm probably the only person who doesn't hate or want to ban Deoxys-D.Anyway I used this set for some time on PO when Lavos Sun was too popular for comfort.
Deoxys-D @ Psychic Gem/Life Orb
EVs: 72 HP / 252 SAtk / 184 Spd
Modest Nature (+SAtk, -Atk)
- Stealth Rock
- Psycho Boost
Attacking Lead!I hated using Genger just for the sake of spinblocking and Xatu really got on my nerves.This set aims to beat Spinners and Magic bouncers instead of using it's bulk to lay more hazards.I used Psychic Gem to OHKO Donphan after Rocks while Thunderbolt was used to 2HKO Xatu and Starmie.Xatu being so popular in early BW2 because of Techniloom hype and GeneSun this set was working very well.Even outside this,attacking Deo-D had got me many useful surprise kills.Life Orb and Thunder are from the analysis,Life Orb Thunder aims for OHKOing Starmie and 2HKOing Forry and Espeon but the unreliability isn't worth it imo.
For handling opposing ones,outright killing it is what I use.Really,leads are designed to get at least SR up.With powerful attackers like Sheer Force Landorus you can easily restrict it to just Stealth Rocks.Like Lavos said Mental herb and Magic coat blocks fast taunters,taunts them back,they switch,Deo-D doesn,t get OHKOed and look,he still gets SR+1 layer of spikes.All the commonly used fast taunters fails to 2HKO this guy.
However I don't think just because it is guaranteed to get SR up doesn't mean it's Ban worthy.Failing to prevent Deo-D from getting SR up doesn't really sound broken to me.