I present you Mega Rayquaza.
It has been confirmed it can HOLD ANY ITEM. Yep, it does not have a mega stone.
Broken/10 with 105/180/100/180/100/115
So let me reiterate. Mega Ray has two 180-attack stats, 115 speed, can hold ANY item (first mega to do so) and has infinite delta stream weather, which negates super effective hits by x2.
Did I mention that you could have Primal Groudon, Kyogre, and Mega Rayquaza all on the same team?
Gamefreak BROKE the game literally. Mega Rayquaza with a choice band is going to wreck every single pokemon in this game.
More broken than gen one mewtwo.
Rayquaza called and wants God status back from Arceus.
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+2 252+ Atk Life Orb Rayquaza Extreme Speed vs. 4 HP / 252+ Def Eviolite Chansey: 421-497 (65.5 - 77.4%) -- guaranteed 2HKO +2 252+ Atk Life Orb Rayquaza Brave Bird vs. 4 HP / 252+ Def Eviolite Chansey: 948-1115 (147.6 - 173.6%) -- guaranteed OHKO +1 252+ Atk Life Orb Rayquaza Brave Bird vs. 4 HP / 252+ Def Eviolite Chansey: 711-838 (110.7 - 130.5%) -- guaranteed OHKO +1 252+ Atk Life Orb Rayquaza Brave Bird vs. 252 HP / 252+ Def Eviolite Porygon2: 277-328 (74 - 87.7%) -- guaranteed 2HKO +2 252+ Atk Life Orb Rayquaza Brave Bird vs. 252 HP / 252+ Def Eviolite Porygon2: 368-434 (98.3 - 116%) -- 87.5% chance to OHKO +2 252+ Atk Life Orb Rayquaza Brave Bird vs. 252 HP / 252+ Def Groudon: 364-430 (90 - 106.4%) -- 37.5% chance to OHKO +1 252+ Atk Life Orb Rayquaza Brave Bird vs. 252 HP / 252+ Def Groudon: 274-324 (67.8 - 80.1%) -- guaranteed 2HKO +1 252+ Atk Life Orb Rayquaza Brave Bird vs. 252 HP / 252+ Def Slowbro: 253-298 (64.2 - 75.6%) -- guaranteed 2HKO +2 252+ Atk Life Orb Rayquaza Brave Bird vs. 252 HP / 252+ Def Slowbro: 335-395 (85 - 100.2%) -- 6.3% chance to OHKO (Brave Bird is just a placeholder for Dragon Ascent in Smongon's calcs) tl:dr broken as -blam!-