So I have a few questions about this meta that I'd like to know before I delve into it.
1) what abilities make Keldeo and. Bisharp so good? More curious about Bisharp tbh.
2) this is mostly personal interest because Blaziken is my favorite Pokémon, but how is he mid a in the viability rankings without speed boost? What let's him be better than Infernape with only a base 80 speed?
3) I'm probably overlooking something, but are banned abilities available on mons that originally get them such as Aerialate Pinsir or speed boost Yanmega?
To add to what word said, Keldeo in particular (And Bisharp too) are extremely powerful with Adaptability, to the point where people run water absorb fighting resists. Adaptability Keldeo can 2HKO Mega Venusaur, and if you run tinted lens, you can even 2HKO SpDef Celebi:
252 SpA Choice Specs Adaptability Keldeo Hydro Pump vs. 232 HP / 4 SpD Mega Venusaur: 153-180 (42.6 - 50.1%) -- 92.6% chance to 2HKO after Stealth Rock
252 SpA Choice Specs Tinted Lens Keldeo Secret Sword vs. 252 HP / 0 Def Celebi: 206-244 (50.9 - 60.3%) -- guaranteed 2HKO after Stealth Rock and Leftovers recovery
Bisharp is similar, as with adapatability it does stuff like OHKO Skarmory at +2, and dealing 90% minimum to Hippo and Alo fish thing:
+2 252+ Atk Life Orb Adaptability Bisharp Knock Off (97.5 BP) vs. 252 HP / 252+ Def Skarmory: 335-395 (100.2 - 118.2%) -- guaranteed OHKO
+2 252+ Atk Life Orb Adaptability Bisharp Knock Off (97.5 BP) vs. 252 HP / 252+ Def Hippowdon: 377-445 (89.7 - 105.9%) -- 37.5% chance to OHKO
It can also tear through offense if you dont keep your bisharp check healthy, as it does stuff like 82-96% to keldeo and 1-shotting Blaziken with sucker punch, 2 decently bulky dark resists:
+2 252+ Atk Life Orb Adaptability Bisharp Sucker Punch vs. 0 HP / 0 Def Keldeo: 265-312 (82 - 96.5%) -- guaranteed 2HKO
+2 252+ Atk Life Orb Adaptability Bisharp Sucker Punch vs. 4 HP / 0 Def Mega Blaziken: 291-343 (96.3 - 113.5%) -- 81.3% chance to OHKO
Basically, they're kinda broken.