Mega Porygon-Z
Normal ----> Normal
Adaptability / Download / Analytic ----> Trace
85 / 80 / 70 / 135 / 70 / 90 (535) ----> 85 / 80 / 110 (+40) / 175 (+40) / 110 (+40) / 70 (-20) (635)
Porygon Z is fixed to fall more in line with what he once was: the ultimate tracer! Back to the glory of P2, backed by an unholy SpAtk, MegaZ hits hard and traces harder.
Tracing gets you some nice stuff from nice things, such as free Intimidates, Regenerates and anything defensive. Switch in on a Sap Sipping Grass type or a Water Absorbing Water type. There's a deceptive level of tankiness here.
Bug/Flying → Bug/Dragon
Speed Boost/Tinted Lens/Frisk(hidden) → Tinted Lense
86/76/86/116/56/95 (515)>>>86/77(+1)/105(+19)/150(+34)/80(+24)/117(+22)
New Moves: Quiver Dance, Dragon Pulse, Heatwave
Concept: After surviving long enough to get a few Speed Boosts, mega up and start STABing things. This would've been amazing if Fairies didn't exist, and bug resistant dual combos do exist if paired with Steel, Fire, Fight, Ghost, Poison, or Flying. Oddly enough, 3 of those don't exist without going mega, but a coverage move can easily fix the issue: Heatwave, Giga Drain or Air Slash add the needed coverage for type coverage to neutrally hit all 171 type combos, and it's both fast and hard hitting with Quiver Dance... but it's frail. Not only does it not have room for Roost with a coverage and boost move, it might need to switch out a few times. Doing so makes its weak to Stealth Rocks. All hell breaks loose once you can keep it in, but until then, ask god for help, because Arceus...
+1 252+ SpA Tinted Lens Yanmega Bug Buzz vs. 252 HP / 0 SpD Arceus-Fairy: 350-414 (78.8 - 93.2%) -- guaranteed 2HKO
is dead!