Refer to this thread for more information. Okay, I had a look in the usage stats, and what really surprised me was how people were using their Blisseys. This made me actually take a look at the analysis, and I was to be frank, quite disappointed when I saw the EV spread. The one on-site at the moment is highly inefficient. Even since DPP, the demand for Blissey to run Special Defense was apparent, when funny stuff like NP Hyper Beam Porygon-Z appeared. With an even more powerful metagame in BW (especially with weather), you'd expect that we keep that Special Defense, because it's important. The EV spread on-site right now makes Blissey die to so many things that it should not be dying to. Here are some calcs using the current spread: Modest Choice Specs Politoed's Hydro Pump vs Blissey: 40.48% - 47.90% (2HKO after SR and Spikes) Modest Choice Specs Rotom-W's Hydro Pump vs Blissey (rain): 44.96% - 52.94% (84% chance to 2HKO after SR) Timid Flash Fire Heatran's Fire Blast vs Blissey (sun): 47.48% - 56.02% (2HKO after SR) +1 Virizion's Focus Blast (Leftovers) vs Blissey: 49.58% - 58.26% (2HKO after SR) Choice Specs Latios's Draco Meteor vs Blissey: 36.97% - 43.70% (Too much!) Now, I know some of the more dangerous threats in the metagame are physically powerful (like Terrakion), but the thing is that Blissey should not be taking those guys on in the first place. While I'm not proposing another ridiculous spread like 252 HP / 252 SpD Calm (which makes you WAY too susceptible to Pursuit), Blissey does NOT need 714 HP. What do we need it for? Seriously, it doesn't help you take on physical attacks much at all. Blissey doesn't really need 63 extra HP, it doesn't do much. You may say it allows her to pass bigger Wishes, but again, is 326 HP not big enough? Do we really need 357 HP Wishes? What for? So, I reckon the best spread for Blissey is 4 HP / 252 Def / 252 SpD Calm. I personally prefer Calm (since I play Ubers a lot), since that really makes Blissey takes special attacks like a champ, but I guess for OU, where the special attacks aren't as ridiculous as in Ubers, a Bold nature does just fine. Here are better looking calcs (I'm assuming 4 HP / 252 SpD Calm btw): Modest Choice Specs Politoed's Hydro Pump vs Blissey: 33.74% - 39.72% (Guaranteed two hit survival with SR, Spikes and Leftovers) Modest Choice Specs Rotom-W's Hydro Pump vs Blissey (rain): 37.27% - 43.87% (Guaranteed two hit survival with SR and Leftovers) Timid Flash Fire Heatran's Fire Blast vs Blissey (sun): 39.26% - 46.47% (Guaranteed two hit survival with SR and Leftovers) +1 Virizion's Focus Blast (Leftovers) vs Blissey: 41.41% - 48.77% (7% chance to 2HKO after SR) Choice Specs Latios's Draco Meteor vs Blissey: 30.83% - 36.35% (Better) This post also gives calculations. So yeah, if QC could have a look at this and think about it, hopefully we can move to a better EV spread, because I don't think the one on-site is efficient. Take a look at the link at the top of the thread too. If there are anything that the extra 252 HP help achieve, these should be brought up as soon as possible!