Alternatively, you could make it a CM+Rest set with Psyshock/Thunderbolt or Psyshock/HP Fighting so that you can actually legitimately beat something after you kill off Blissey.
Even with Psyshock, depending on its EVs Porygon2 is likely to be 2hko'ed at +6 or stalled out, which is guaranteed if there's sandstorm or hail out.
this is with 0 special attack investment, by the way. 252 HP/252 Def is all you need once you're getting to +6.
Even with Psyshock, depending on its EVs Porygon2 is likely to be 2hko'ed at +6 or stalled out, which is guaranteed if there's sandstorm or hail out.
this is with 0 special attack investment, by the way. 252 HP/252 Def is all you need once you're getting to +6.