I have no opinion on a Lopunny rise as I haven’t played all that much recently, but I don’t think this was a good nom. You just named some of its qualities and listed some calcs. If Mega Lop was unranked or relatively unexplored, the qualities you listed would be good for pointing out what it can do. But it is ranked, at A-, mostly for the reasons you gave. When nomming for a rise, you generally want to list changing trends in the metagame that benefit Lopunny and make it more viable, such as a check like Toxapex falling off in usage (an example, it actually isn’t) or a mon that Lopunny takes advantage of rising in usage. Or you could list off a new, unexplored set that you think makes it that much better. Sorta how people are arguing for a Bulu rise due to its AV set bursting into the scene in the past month or so. But just listing off the qualities that got it ranked in the first place doesn’t help your case. Neither does mentioning that it was the best Mega in ORAS OU, as that’s a completely different metagame.
Hope this helps you out for future posts
I'm echoing this, Lopunny doesn't deserve a rise. I've used it a lot recently and it's a fine teammate, but it suffers massively from 4MSS and fails to break a number of top-tier Pokemon in the metagame without prior damage, some luck, or absolutely masterful prediction. Let me explain.
1.
Toxapex: by far the worst thing to face as a M-Lopunny user, it swaps in on anything and won't die to a +1 Return. Even when you're running Encore, all this thing needs to do is get a burn with Scald and swap out to do its job effectively. Regenerator lets you pull this off numerous times throughout a match - not that Lopunny has a good chance of safely getting into play more than a few times throughout a match.
252 Atk Lopunny-Mega Return vs. 252 HP / 192+ Def Toxapex: 96-114 (31.5 - 37.5%) -- 85.7% chance to 3HKO
+1 252 Atk Lopunny-Mega Return vs. 252 HP / 192+ Def Toxapex: 144-169 (47.3 - 55.5%) -- 76.6% chance to 2HKO
2.
Landorus-T: The other S-Rank, and a pain in the ass for M-Lopunny. While Ice Punch hits it hard, it doesn't score a kill, even if you get it with PuP on the switch. On top of this, Lando's all-too-common Rocky Helmet completely nullifies the effectiveness of PuP, as it leaves you at neutral and you take damage. Last, Lando's ability to retaliate with Earthquake gives it needed retaliatory power.
252 Atk Lopunny-Mega Ice Punch vs. 252 HP / 216+ Def Landorus-Therian: 272-320 (71.2 - 83.7%) -- guaranteed 2HKO after Leftovers recovery
-1 252 Atk Lopunny-Mega Ice Punch vs. 252 HP / 216+ Def Landorus-Therian: 180-216 (47.1 - 56.5%) -- 25% chance to 2HKO after Leftovers recovery
-1 252 Atk Lopunny-Mega Return vs. 252 HP / 216+ Def Landorus-Therian: 93-109 (24.3 - 28.5%) -- possible 5HKO after Leftovers recovery
3.
Zapdos: Another popular wall whose been enjoying a little more popularity recently with Kartana, Bulu and M-Scizor's rise in popularity. Similar to Landorus in that PuP is not effective and it opens the door for you to take Static paralysis. Even if you correctly predict it, neutral Ice Punch is a 2-3HKO (depending on SR/prior damage) meaning you're looking at two 30% chances to have a ruined M-Lopunny for the rest of the match.
252 Atk Lopunny-Mega Ice Punch vs. 248 HP / 240+ Def Zapdos: 138-164 (36 - 42.8%) -- 95.8% chance to 3HKO after Leftovers recovery
252 Atk Lopunny-Mega Ice Punch vs. 248 HP / 240+ Def Zapdos: 138-164 (36 - 42.8%) -- 20.7% chance to 2HKO after Stealth Rock and Leftovers recovery
+1 252 Atk Lopunny-Mega Ice Punch vs. 248 HP / 240+ Def Zapdos: 204-242 (53.2 - 63.1%) -- guaranteed 2HKO after Stealth Rock and Leftovers recovery
4.
Scarf users/Speed Tier: Latios, Kartana, Landorus-T, Tapu Lele, and pretty much any other Scarfer (save Greninja) has recourse against Lopunny. While that's not a death sentence (all of these pokemon are also vulnerable to others if they lack a Scarf or are locked into a bad move), it doesn't help a pokemon whose job it is to set up and sweep with PuP. In particular, Latios, Lele, and Landorus can also swap in on a PuP or HJK and threaten it out. One of the major selling points for M-Lopunny is that it's faster than all of these Pokemon (and Tapu Koko/Ash Greninja) when they're not scarfed, but in reality, any or all of these pokemon might nullify it and the only way to know is to swap M-Lopunny out and guess what's going on. That's a problem for something as frail as M-Lop is and once you take entry damage a couple of times it starts to show. On top of this, Ash-Greninja has Water Shuriken, which ruins your day and knocks another name off the list of things that M-Lopunny surely beats because of its great speed tier.
252 SpA Choice Specs Greninja-Ash Water Shuriken (20 BP) (3 hits) vs. 0 HP / 4 SpD Lopunny-Mega: 174-207 (64.2 - 76.3%) -- guaranteed 2HKO
5.
Power-up Punch: This move itself is a massive conundrum for the M-Lopunny user. What exactly does it kill? Weakened Ash-Greninja, weakened Tyranitar, weakened Heatran.. etc. It doesn't kill anything in the metagame from reasonably high health, and that quickly becomes an issue. For instance, a PuP against Heatran can mean you're taking huge damage from Magma Storm (or a burn from Lava Plume) or a Hydro Pump from Ash-Greninja. Even in more favorable matchups, PuP can become a liability: what happens when your opponent sends in Ferrothorn and you take Iron Barbs damage and then have to guess whether or not it's running Protect? Same situation applies to Celesteela. The point in each of these cases is that while it may seem dumb to go for PuP against these Pokemon, PuP is the only way that you
can properly sweep, and it's often abused as a method for powering up when a would-be KO is predicted to switch out. Overall, the move presents the user with many 50/50's that can be painfully costly.
252 Atk Lopunny-Mega Power-Up Punch vs. 0 HP / 4 Def Greninja-Ash: 186-222 (65.2 - 77.8%) -- guaranteed 2HKO
252 Atk Lopunny-Mega Power-Up Punch vs. 248 HP / 0 Def Heatran: 132-156 (34.2 - 40.5%) -- 31.9% chance to 3HKO after Leftovers recovery
0 SpA Heatran Lava Plume vs. 0 HP / 4 SpD Lopunny-Mega: 111-132 (40.9 - 48.7%) -- guaranteed 3HKO
252 Atk Lopunny-Mega Power-Up Punch vs. 252 HP / 88+ Def Ferrothorn: 92-110 (26.1 - 31.2%) -- 10.1% chance to 4HKO after Leftovers recovery
0 Atk Ferrothorn Gyro Ball (133 BP) vs. 0 HP / 0 Def Lopunny-Mega: 144-169 (53.1 - 62.3%) -- guaranteed 2HKO
6.
Tapu Bulu: Yet another defensive mon that swaps in on Lopunny and forces it out. This one's near the bottom of the list of checks since it's easy enough to play around, but it just illustrates how annoying trying to sweep with Lopunny can be. Bulu also has the added advantage of being able to cover Lopunny with Superpower and hit common switch ins like Kartana and Heatran in case Lopunny sees its death coming.
252 Atk Lopunny-Mega Ice Punch vs. 252 HP / 4 Def Tapu Bulu: 150-178 (43.6 - 51.7%) -- guaranteed 3HKO after Grassy Terrain recovery
+1 252 Atk Lopunny-Mega Ice Punch vs. 252 HP / 4 Def Tapu Bulu: 226-266 (65.6 - 77.3%) -- guaranteed 2HKO after Grassy Terrain recovery
252+ Atk Tapu Bulu Horn Leech vs. 0 HP / 0 Def Lopunny-Mega in Grassy Terrain: 213-252 (78.5 - 92.9%) -- guaranteed 2HKO after Grassy Terrain recovery
7.
Encore: In my world, this move is a recipe for 50/50's and lost turns. Think about it: you swap in against SR Heatran, Ferrothorn, Skarmory, Clefable, Chansey, Lando, etc. Each and everyone one of these pokemon can either see that coming and hit you on the switch or they can just set up and swap out on the predicted Encore. In some of these cases (Skarmory, Chansey) the punishment for mispredicting isn't too bad. But in the case of Clefable, Heatran, or Ferrothorn, that can mean some unfortunate damage that you didn't want to take. The other case in which you'd use Encore is to stop slow setup Pokemon. But in that case, what exactly are you swapping in on? What uses CM or Swords Dance and is either too impotent or too slow for Lopunny to safely swap in on? I have never found this move to be particularly useful outside of maybe dealing with Toxapex a little better.
In conclusion, I've just listed 7 ways that Mega Lopunny struggles with common situations in the current metagame. That's not to say it's trash or deserving of a drop, but rather that it has some major issues with popular pokemon. While it boasts some qualities that are worthy of praise, like a great speed tier, the ability to boost and simultaneously deal damage, perfect neutral coverage, and some fun gimmicks like Encore, this doesn't amount to an A-Rank pokemon in my book.