Blaziken: no change
In a vacuum, Blaziken doesn't appear that bad. It's a Pokemon with a decent STAB combination, powerful moves, and a fantastic ability that lets it capitalise on switches and potentially nab both Speed and Attack boosts in the same turn.
In practice, Blaziken has such a laundry list of flaws that it's almost impossible to justify on a team unless you're specifically building around it, which is not a trait shared by Pokemon in B- and even C+ in some cases. It's forced to choose between +Atk and +Spe natures, which is particularly bad for it; +Atk leaves it unable to beat Gengar and Deoxys-A after a Speed boost, while +Spe leaves it unacceptably weak (its damage output against Primal Groudon and support Arceus formes becomes very, very sad). Its horrific defenses leave it vulnerable to being picked off by priority attacks, and it has no priority of its own to fight back with unlike Deoxys-A. It is completely walled by a large amount of common Pokemon depending on the coverage move it runs; Salamence and Zygarde-C both laugh at sets without Hidden Power Ice, Giratina-O dumps on it if it lacks Shadow Claw, and Ho-Oh beats it if it doesn't have Stone Edge. Finally, Blaziken offers no defensive synergy to teams because it can't switch in on anything; other glass cannons have this problem as well, such as Deoxys-A, but they distinguish themselves through other means.
This sounds more like a Pokemon on the level of Kyurem-W or regular Kyogre to me. Like them, Blaziken can work; I don't doubt that. However, the amount of team support it requires, the absolute necessity for hazards to be up, the very limited amount of teams Blaziken can fit on (hyper offense isn't that great this generation, and I say that as someone who brings Excadrill HO eight times out of ten) and severe issues Blaziken has with a variety of common Pokemon do not convince me that Blaziken should go anywhere.
In a vacuum, Blaziken doesn't appear that bad. It's a Pokemon with a decent STAB combination, powerful moves, and a fantastic ability that lets it capitalise on switches and potentially nab both Speed and Attack boosts in the same turn.
In practice, Blaziken has such a laundry list of flaws that it's almost impossible to justify on a team unless you're specifically building around it, which is not a trait shared by Pokemon in B- and even C+ in some cases. It's forced to choose between +Atk and +Spe natures, which is particularly bad for it; +Atk leaves it unable to beat Gengar and Deoxys-A after a Speed boost, while +Spe leaves it unacceptably weak (its damage output against Primal Groudon and support Arceus formes becomes very, very sad). Its horrific defenses leave it vulnerable to being picked off by priority attacks, and it has no priority of its own to fight back with unlike Deoxys-A. It is completely walled by a large amount of common Pokemon depending on the coverage move it runs; Salamence and Zygarde-C both laugh at sets without Hidden Power Ice, Giratina-O dumps on it if it lacks Shadow Claw, and Ho-Oh beats it if it doesn't have Stone Edge. Finally, Blaziken offers no defensive synergy to teams because it can't switch in on anything; other glass cannons have this problem as well, such as Deoxys-A, but they distinguish themselves through other means.
This sounds more like a Pokemon on the level of Kyurem-W or regular Kyogre to me. Like them, Blaziken can work; I don't doubt that. However, the amount of team support it requires, the absolute necessity for hazards to be up, the very limited amount of teams Blaziken can fit on (hyper offense isn't that great this generation, and I say that as someone who brings Excadrill HO eight times out of ten) and severe issues Blaziken has with a variety of common Pokemon do not convince me that Blaziken should go anywhere.