Would Megachomp have been completely busted if it kept the 102 speed?
>>31952321
Not really, Mega Salamence puts it to shame based on stats, moveset, and ability.
>>31952764
But now it's banned, so it's irrelevant.
>>31952321
Probably not desu, it can't hold scarf or anything.
>>31952788
Actually no, it's VERY relevant, considering OP is asking the degree of command Mega Chomp would have. Mega Salamence is relevant since it's been there, done that.
>>31952321
In XY, it would have likely been banned. In ORAS, with the new 110 Speed mons and in Gen 7, it faces more competition to be used and has more things that can outspeed and overwhelm it. That, and non-Mega Garchomp maintains many roles to compete with Garchompite.
I would say it wouldn't be broken nowadays since once it's identifiable as the Mega, and once the meta adapts around it, it can face a great deal of obstacles to balance it.