Originally Posted by Aleeecks
Man, that sucks. I'll take your advice into consideration but I don't have access to Seismic Toss. I bred this Blissey in my Diamond and my Leaf Green is at the very beginning of the game. I know I said I'd be open to suggestions, and I'm not disputing how much more effective this moveset could be. The only problem is the massive amount of effort I'd have to put in playing the game and breeding a Blissey from scratch. Seismic Toss aside, do you have any other ideas?
If you can't get Seismic Toss, you can use Aromatherapy in the last slot, and replace Seismic Toss with Ice Beam. In doing so, move the HP EVs to Special Attack, since Blissey needs all the SpAtk it can get. HP EVs are kind of overkill anyways, but the only other stat to put them in is Speed, which is by no means necessary. Seismic Toss is really preferred because Blissey is weak, but Ice beam will suffice. Use Thunder Wave so you aren't extreme setup fodder. Toxic is not a good option anymore.
About the rest of your team:
[INSANELY GENERIC STATEMENT]Your team looks a little MixApe weak.[/INSANELY GENERIC STATEMENT] Nasty Plotted MixApe can OHKO 3/4 of your team if it has Grass Knot and SR up. In order to help this, you might consider adding a Starmie to your team. It can Spin away SR, which relieves Mence and Gyara from so much damage, especially with Mence being Choiced. It also outspeeds 'Ape and KOs with Surf + any residual damage like SR or Life Orb. Resisting Ape's core moves, Starmie is built to kill it. Try this set:
Ability: Natural Cure
Timid Nature (+Spd -Atk)
EVs: 136 HP/156 Df/216 Spd
This Starmie gets rid of SR and Spikes, and can Recover off any damage. Natural Cure means that Toxic Spikes and random parahax or freeze hax won't cripple you. Surf kill Infernape, who your team needs to kill desperately, and Recover gives you back your health.
As for your questions, do NOT add a Swampert or Skarmory. You would have 4/6 of your team Infernape weak, which would seriously hold you back. As for a lead, I would either recommend an Anti-Lead Lucario since he resists 3 types which your team otherwise has no answer to and works well as a lead, or a lead Heatran. You can find both of those sets here
, in the respective Pokemon's analysis. If you go with a Lucario lead, you can put SR on Blissey if you want in place of Aromatherapy, but it is not recommended.