I'm sorry I'm posting a new topic, but your topic was archived and I wanted to try to help you out.
If you are using the Raichu/Kadabra/Quagsire/Haunter/Fearow/Poliwrath rental team, then might I suggest using Fearow/Raichu/Quagsire?
I know Thunder has shaky accuracy, but you can use Raichu to take out that Aerodactyl while saving Quagsire to Amnesia and Surf out that Tyranitar (which has Quick Claw, btw). Fearow is specifically for his Machamp (as Machamp can use Earthquake to take down Haunter and Kadabra). If Machamp isn't used, Fearow can be saved for the last bit of damage on Kingdra/Dragonite/Charizard.