What truly stands out in my eyes here is Desukan's ability. If it has good stats (or is even just defense-based), then I can guarantee it'll be OU.
Buffalon is just...I don't know what to say. I's a buffalo with an afro, what's not to like?
Dangoro seems like the kind of Pokémon to replace Geodude in the caves...and it has Sturdy. ._.
According to the lists given yesterday, it seems as if Tabunne won't evolve...a shame, really. If it evolved and thus had better stats, I'm sure it and Heal Beam could be used. I guess Tabunne is like the White Mage of Pokémon.
With your other Pokémon holding a Lum Berry, Victini's Flame Sphere attack could have quite an impact on the Double and Triple battle metagame. Being able to burn 2 or 3 Pokémon in a single attack is godly. It seems like Victini is more like a support Pokémon than anything.
Wait, I got it. Complete Burn to disable the berries, then Flame Sphere to burn everything. Hax Sign: Burn Everything
To be honest, I thought that Doryuuzu's head was the drill...
Everything looks good to me.
...despite the starter evolutions. -_-