Last one about Porygon2 was never, so I thought it's time for one.
Porygon2 (Normal)
Base Stats: 85 HP / 80 Atk / 90 Def / 105 SAtk / 95 SDef / 60 Spd
Ability: Trace (copies opponent's ability; now works with Intimidate!)
Ability: Download (Porygon2 raises itself in the offensive stat that the opponent is weakest against)
Notable Physical Movepool
Return
Double-Edge
Aerial Ace
Notable Special Movepool
Tri Attack
Thunderbolt
Thunder
Ice Beam
Blizzard
Signal Beam
Psychic
Shadow Ball
Discharge
Notable Support Movepool
Sharpen
Thunder Wave
Recover
Psych Up
Pory2 is much more defensive than its newer brother Porygon-Z, which allows it to take hits from DD Gyarados and SD Garchomp rather well. I'm wondering if there's a point to running Download ever, it could be pretty fun against Garchomp etc. with a mixed Porygon2 moveset.
Porygon2 @ Leftovers
Nature: Bold (+Def -Atk) or Modest (+SAtk -Atk)
Trait: Trace
EVs: 228 HP / 172 Def / 108 SAtk
-Thunderbolt
-Ice Beam
-Tri Attack
-Recover
Staple Porygon2. Bold lets it take hits from Gyarados and Garchomp better, Modest helps against other opponents since either nature's Ice Beam will OHKO Garchomp and 2HKO Gyarados with Thunderbolt.
Porygon2 @ Leftovers
Nature: Brave (+Atk -Spd)
Trait: Trace
EVs: 228 HP / 136 Def / 144 SAtk
-Sharpen
-Return
-Thunderbolt
-Recover
Sharpen Pory2. Not much to say aside from anti-stalling.

Porygon2 (Normal)
Base Stats: 85 HP / 80 Atk / 90 Def / 105 SAtk / 95 SDef / 60 Spd
Ability: Trace (copies opponent's ability; now works with Intimidate!)
Ability: Download (Porygon2 raises itself in the offensive stat that the opponent is weakest against)
Notable Physical Movepool
Return
Double-Edge
Aerial Ace
Notable Special Movepool
Tri Attack
Thunderbolt
Thunder
Ice Beam
Blizzard
Signal Beam
Psychic
Shadow Ball
Discharge
Notable Support Movepool
Sharpen
Thunder Wave
Recover
Psych Up
Pory2 is much more defensive than its newer brother Porygon-Z, which allows it to take hits from DD Gyarados and SD Garchomp rather well. I'm wondering if there's a point to running Download ever, it could be pretty fun against Garchomp etc. with a mixed Porygon2 moveset.
Porygon2 @ Leftovers
Nature: Bold (+Def -Atk) or Modest (+SAtk -Atk)
Trait: Trace
EVs: 228 HP / 172 Def / 108 SAtk
-Thunderbolt
-Ice Beam
-Tri Attack
-Recover
Staple Porygon2. Bold lets it take hits from Gyarados and Garchomp better, Modest helps against other opponents since either nature's Ice Beam will OHKO Garchomp and 2HKO Gyarados with Thunderbolt.
Porygon2 @ Leftovers
Nature: Brave (+Atk -Spd)
Trait: Trace
EVs: 228 HP / 136 Def / 144 SAtk
-Sharpen
-Return
-Thunderbolt
-Recover
Sharpen Pory2. Not much to say aside from anti-stalling.