From my post in the viability thread:
"Mega Medicham... what to say about my ORAS hero? I think this time around HJK is more powerful than ever, with the decline of two of it's biggest counters in Slowbro and Starmie. Almost nothing can switch unpunished in a HJK. The only responses to this move alone are Mega-Venusar (OHKO'd by Zen Headbutt), Toxapex (same, but also vulnerable to Thunder Punch), Protect (less popular than it was in ORAS), and Ghost types (all offensive except Sableye). Even if you have a Ghost mon in your team, the best you can do is start a mind game, since Gengar and Marowak are hit hard by coverage moves, and Mimikyu risks losing his much needed Disguise.
Some calcs to demonstrate what a beast he is:
252+ Atk Pure Power Medicham-Mega High Jump Kick vs. 240 HP / 176+ Def Garchomp: 309-364 (74.1 - 87.2%) -- guaranteed 2HKO
252+ Atk Pure Power Medicham-Mega High Jump Kick vs. 248 HP / 212+ Def Tangrowth: 246-291 (61 - 72.2%) -- guaranteed 2HKO
252+ Atk Pure Power Medicham-Mega High Jump Kick vs. 248 HP / 44 Def Amoonguss: 245-288 (56.8 - 66.8%) -- guaranteed 2HKO after Black Sludge recovery
252+ Atk Pure Power Medicham-Mega High Jump Kick vs. 252 HP / 0 Def Mew: 194-228 (48 - 56.4%) -- guaranteed 2HKO after Stealth Rock and Leftovers recovery
-1 252+ Atk Pure Power Medicham-Mega High Jump Kick vs. 0 HP / 4 Def Landorus-Therian: 140-165 (43.8 - 51.7%) -- guaranteed 2HKO after Stealth Rock
252+ Atk Pure Power Medicham-Mega High Jump Kick vs. 252 HP / 252+ Def Clefable: 170-201 (43.1 - 51%) -- 53.1% chance to 2HKO after Stealth Rock and Leftovers recovery
252+ Atk Pure Power Medicham-Mega High Jump Kick vs. 248 HP / 192 Def Tapu Fini: 146-172 (42.5 - 50.1%) -- 37.1% chance to 2HKO after Stealth Rock and Leftovers recovery
It's rather incredible that even Tapu Fucking Fini can't switch safely on this thing. Everytime you switch Cham into something that's on his KO range, hell breaks loose.
He's also very maleable set wise. Except HJK, no move is really mandatory IMO. Personally, considering the current state of the meta, I'd go for:
- High Jump Kick
- Zen Headbutt (because Venusaur)
- Bullet Punch (great cleaning move that makes up for Cham's sub-optimal speed)
- Fake Out (great way to scout sets and amazing synergy with BP)
Of course, forgoing Ice Punch has it's downsides. So has forgoing Thunder Punch, but it's my belief that the latter is the least required unless you're facing the mighty Alomomola.
His biggest nemesis is still Mega Sableye, so he benefits a lot from a partner who can deal with the little turd. Also, Scarf Lele is a huge problem to deal with.
All in all, I'm not supposed to nominate him yet, but boy does he look promising!"
I think you guys are getting overexcited about this terrain thing. Cham's already a mon that requires some level of support to switch in safely, and you're still planning on making it more complicated by needing one terrain setter to go along with it, meanwhile preventing other terrain setters to switch in.
Electric terrain + TP seems rather unimpressive considering HJK or resisted HJK + ZH can already do as much damage as needed to KO lots of shit.
Psychic terrain kills two of Medicham's best moves in order to benefit his inferior STAB. I don't see why the hype.
Instead of dreaming about terrain combos of questionable consistency, y'all should focus on Cham's raw and already outstanding wallbreaking capabilities.
If anything, I'd say grassy terrain is the best terrain for it, protecting it from EQs and giving it a little recovery, but since Bulu + Cham looks redundant, I'd say that Fini would be a good partner, keeping hazard, status, and Dragon moves in check .
