On battle 20 odd. Noticing how Mega Blaziken is OHKO'ing everything barr Multi-Scale Dragonite with just one Hone Claws, plus with speed boost you can forgo speed ev's in favour of HP, def or sp.def.
Makes me think Mega Lucario would be better however, swords dance plus adaptability CC and Bullet Punch along with its better typing will decimate.
EDIT: also wondering if there will be a difficulty hike later on to compensate. The difficulty curve of the earlier tower and subway was more considerable.
EDIT 2: Did some testing on an earlier battle, and can indeed show that the enemy AI makes its moves after a switch:
Example A:
Turn 1: Enemy sends out Politoed, I send out Shuckle
Politoed uses Belly Drum
Shuckle uses Power Trick
Example B: Enemy sends out Politoed, I send out Shuckle
I switch to Blaziken
Politoed uses Waterfall (9 times out of 10)
Whilst frustrating, its something that teams need to work around. In total fairness, my team was rushed and poorly thought out, and I'm self limiting by not using pokemon I already have fully IV'd and EV'd ready to go on B/W.