Not too bad a team so far. I'm not very sure about Wobbuffet, it's a good enough Pokémon, just that it's probably outclassed for in-game use. Since I assume this is ingame, I won't talk about natures or EVs and all. So:
Blaziken
-
Flamethrower/Fire Blast/ Blaze Kick
-Sky Uppercut
-
Bulk Up
-filler
Flamethrower and Fire Blast are both good alternatives to Blaze Kick. Flamethrower has the best accuracy and solid 95 power, Fire Blast is the most powerful but forgoes accuracy. The burn chance is pretty decent too, at 30%. Blaze Kick is weakest at 85 power but has the highest Crit Hit ratio and has a 10% burn chance.
Sky Uppercut is standard, and Bulk Up boosts Blaziken's massive attack and it's average Defence. The last move is entirely up to you. I had Earthquake and Double Kick instead of Bulk Up and filler. However, EQ gets pretty much the same type coverage as Sky Uppercut.
Flygon
-
Dragon Claw
-
Flamethrower/Fire Blast/ Steel Wing
-
Earthquake
-Fly
Pretty standard here. Dragon Claw is 30% more powerful the Breath, but you don't get the chance of paralysis. Flamethrower/Fire Blast/ Steel Wing is for countering Ice types. I'd like to mention here that Fire/Dragon gets neutral hits on every Pokémon in GenIII. Earthquake is for STAB, and I've left Fly for convenience.
Bellossom
-
Sunny Day
-
Solarbeam
-
Moonlight
-Sleep Powder/
HP (Fire)
Yay, sun Bellossom. This almost identical to the set I used in my mono-type run, except I had Sludge Bomb instead of Sleep Powder/ Hidden Power. The idea is basic here: use Sunny Day to boost speed and then put to sleep with Sleep Powder, heal any damage with Moonlight and then hit hard with Solarbeam or HP (Fire). It's ok if you can't get HP (Fire), you still have Solarbeam to deal damage with.
Bellossom may not be the best Pokemon to use, but Sunny Day helps Blaziken and Flygon hit a lot harder.
*
Chimecho is heavily outclassed by Alakazam and Gardevoir, so I'll give you sets for both:
Alakazam
-Psychic
-Recover
-Reflect
-filler
Gardevoir
-Psychic
-Thunderbolt
-Hypnosis
-Calm Mind
Relicanth
-
Surf
-
Ancient Power/Rock Tomb
-Yawn
-
Double Edge/Return
Pretty basic stuff here again. Surf gets STAB, but watch out since Relicanth has crap Special Attack. Ancient Power could be used in place of Rock Tomb since it has more power can has a 10% chance of raising all stats. It does have (very) low PP though. Yawn is for sleep, and Double Edge is a must if you have Rock Head as your ability. If you have Swift Swim though, Return is a powerful attack that pairs well with Surf.
And Wobbuffet is fine the way it is. Still don't really like it though...