____________ said:
Please explain to me how A fire/flying-type with the moves Solarbeam, STAB Flamethrower and Focus Blast has better coverage than a Ghost/Poison-type Pokemon with Levitate and the moves STAB Shadow Ball, STAB Sludge Bomb/Wave and Focus Blast?
Easy. It uses Fire Blast does over half to pretty much everything in the game, OHKOing a ton of stuff. Solar Beam, Dragon Pulse/Focus Blast, and Earthquake cover up any holes easily. Gengar's coverage is not near as powerful. However, Gengar is an obscenely dangerous Pokemon
I would argue
Victini for C Tier. Victini hits very hard in sun and can punch some enormous holes. However, it's got a SR weakness and loses to common priority (Shadow Sneak/Brave Bird/Mega Pinsir's Quick Attack/Aqua Jet). Its main STAB causes a series of stat drops that forces it out pretty much immediately. Victini's power gives it something, but it has a number of weaknesses that mean it really shouldn't be above C Tier.
On
Froslass: I don't think it's worth anything above like
D Tier. It can have limited effectiveness as a lead, but the existence of Deoxys-D makes that a rather moot point. Spikes / Destiny Bond / Taunt / Ice Beam, I'd presume. It does have Destiny Bond, which is rather nice, so it's not totally outclassed in every aspect ever.
Alright, I'm gonna nominate
Mega Charizard Y for A+ Tier. Megazard Y is an excellent Pokemon. It boasts a solid Special Defense and not
too shabby Defense. It sits at a base 100 Speed tier, which is plenty enough for many Pokemon in this metagame, and rips apart the metagame with its sun-boosted Fire Blasts. Pretty much everything in OU takes over half from Fire Blast; the few things that don't are demolished by its stellar coverage. Solar Beam OHKOes Rotom-W after SR/the tiniest bit prior damage (think that it's switched into Fire Blast or something), OHKOes Keldeo, and more. Dragon Pulse hits the Lati twins plenty hard. Focus Blast OHKOes Tyranitar and 2HKOes specially defensive Heatran. Earthquake destroys Heatran. Heck, you can even beat Blissey/Chansey with Flare Blitz and Garchomp with HP Ice if you want. It also gets Roost if you want recovery. While you can't have all these moves on one set, they truly speak for its versatility in moveset and the impossibility of truly countering it. Going back to Fire Blast, it just demolishes. Offensive Pokemon that don't resist are OHKOed, and resists face taking 50-75%.
Now let's talk about how it fares against the metagame's threats. The sun Megazard Y provides means it doesn't lose to pretty much any Water-type, which is an incredible feat for a Fire-type. Its typing gives it a handy Fighting resistance, and it handles special Mega Lucario pretty well, in addition to checking physical variants. It destroys Aegislash, one of the metagame's top threats. It wrecks SDef Mega Venusaur in sun with Fire Blast, a massive feat. It walls Genesect's moves bar Thunderbolt, and it doesn't even get the SpA boost so that doesn't even do all that much. It outright demolishes Rotom-W with Solar Beam. Special Landorus-I can't touch it. It does like 75% to Mandibuzz, an impressive feat. There's so much Megazard Y does that can't be matched by much of OU. It's simply an excellent wallbreaker and check to numerous Pokemon thanks to its enormous Special Defense.
The factors keeping me from nominating it for S Rank are a few. First is its inability to touch Latios -- a prominent threat -- and Latias without Dragon Pulse. It also falters against Thundurus-I, Terrakion, CB Talonflame if it's a little bit weakened. It's also walled by Blissey and Chansey most of the time, bar Flare Blitz. Its Stealth Rock weakness necessitates Latios or Excadrill as a partner. Without these drawbacks, it would easily be S Rank; however, it is such a ridiculous wallbreaker and powerhouse that it easily deserves A+ Tier with Megazard X.