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You just level it up to level 50
In Emerald/Ruby/Sapphire, you go to Dewford town before you get a chance to battle a Combusken. There you need to get a fishing rod from a fisherman that is in Dewford, catch a water Pokemon with the Old Rod you now have, and level it up. Then by the time you get a chance to battle a Combusken put in that water Pokemon and sit back, relax, and put out Combuskens fire!
Level it up to level 16 into Combusken then level 36 to make it into Blaziken.
level them up idiot
You have to level them up, there is no cheat to get them to level 100 instantly
With the seventh badge in Pokemon Ruby version, you can control caught or traded Pokemon up to level 70.
your rival in Pokemon emerald has a level 18 wingull, a level 20 combusken, and one other Pokemon with a level around 20. So all you have to do is get a Pokemon that is strong against combusken and get all your Pokemon you are going to fight her with to a level close to twenty, 17 or higher, if your Pokemon is not that high yet battle trainers around slateport and in the trick master's house or fight wild Pokemon till your strong enough and remember you got to catch them all to be a master so never give up.
you have to start the game, then get a torchic, then evolve it to combusken by leveling it up, then at level 36 it evovles into a blaziken
Level it up until level 36.
blazeken doesnt evolve but combusken evovles into blaziken at lv 36
the strongest Pokemon to fight in Pokemon ruby is not victory road it is in the sky pillar the farther you go up the higher level they get.
the fastest way to level them up is to take them to an area that has Pokemon leveled at or slightly below the level that your Pokemon is also if you battke with exp. share on your Pokemon it gains double exp.