But you also have to remember that the biggest advantage it has over standard SD Lucario is its overall better coverage. Although BP is a bit weaker then E-Speed, LO SD Lucario has terrible 4th moveslot syndrome where it's walled by a few specific Pokemon depending on what moves it runs. If it runs BP, then it's walled by Landorus-T, Gliscor, Dragonite, Jellicent, and Celebi. If it runs Crunch, Kyurem-B, landorus-T, Gliscor, and Dragonite can wall it/kill it. If running Ice Punch, then Jellicent hardwalls Lucario and both Terrakion and Gengar can no longer be killed off. Mega Lucario however, is either only walled by the Gliscor and Landorus-T if using Crunch, and Jellicent if using Ice Punch. Mega Lucario has less counters and only a few more checks then LO SD Lucario, which gives it a solid niche over its regular counterpart. It wouldn't be completely obsolete to its counterpart, because what it lacks in E-Speed power it excels in beating out almost everything that would normally give LO SD Lucario problems. And it's not like Bullet Punch is going to be weak. Unlike E-Speed, it can beat Terrakion, Gengar, and even Kyurem-B, something that can check the LO SD set. They would both have their niche on certain teams, LO SD Lucario being more reliable mid-late game sweeper while Mega Lucario could potentially pull off early game sweeps more often. So no, I'm definitely not disagreeing with your argument, because missing that extra power that E-Speed brings can be crucial, but I just don't agree that Mega Lucario would be COMPLETELY obsolete to its regular counterpart. Now Mega Blaziken...that's a different story. I don't know if there would be any reason to use that thing, unless its Attack stat is off the charts. This is why I wish GF didn't give good Pokemon Mega Evo's, because ironically most of them are outclassed by their counterparts lol. Something like Mawile, Khangaskhan, Absol, and Ampharos makes sense, but unless Blaziken or Lucario are extremely powerful or a bit faster, it just makes no sense that GF would technically speaking, make a shittier evolution.