Not very perceptive are we, frend? Talonflame is a straight up counter to any and all medicham sets. Even with substitute, medicham cannot take priority brave birds to the face. Thus the venusaur/rotom-w reference. Secondly if you actually read my original post you would have seen a different spread w/ impish/careful. (No not really, your OP didn't have impish in it, so...)
*snip*
Adding onto this, I'll try your spread...
252+ Atk Life Orb Talonflame Brave Bird vs. 0 HP / 96 Def Mega Medicham: 416-494 (159.3 - 189.2%) -- guaranteed OHKO
252+ Atk Life Orb Talonflame Brave Bird vs. +1 0 HP / 96 Def Mega Medicham: 281-330 (107.6 - 126.4%) -- guaranteed OHKO
252+ Atk Life Orb Talonflame Brave Bird vs. 0 HP / 96+ Def Mega Medicham: 382-452 (146.3 - 173.1%) -- guaranteed OHKO
252+ Atk Life Orb Talonflame Brave Bird vs. +1 0 HP / 96+ Def Mega Medicham: 257-304 (98.4 - 116.4%) -- 81.3% chance to OHKO
yeah, talonflame makes it
gitgud69, even more so when it's choice band tflame, which manages to OHKO it at +2.
However, just gonna state that talonflame is not a counter to medicham at all. Heck, it can't be named a counter to anything per se, because it's frail, and it has a 4x SR weakness, meaning it's not gonna be switching into moves as often as you think. There's also this:
252 Atk Pure Power Mega Medicham Zen Headbutt vs. 0 HP / 4 Def Talonflame: 288-339 (96.9 - 114.1%) -- 81.3% chance to OHKO
252+ Atk Pure Power Mega Medicham High Jump Kick vs. 0 HP / 4 Def Talonflame: 284-334 (95.6 - 112.4%) -- 75% chance to OHKO
I also agree with
Jaiho , I'm very interested in seeing a high-ladder replay where Mega medicham has "worked wonders" as you say.
That said, I've run a few calcs, and medicham's spread isn't OHKO'd by anything else relevant in OU (but is 2HKO'd by most of these threats even at +1). However, the lack of passive recovery, reliance on Drain Punch to prevent it from being 2HKO'd by anything, it's lacklustre bulk, low HP substitutes and zero HP investment, along with zero speed investment causing you to be outsped by generally faster walls such as gliscor, landorus-t and rotom, kinda makes this set... ehh.