Hmm, difficult choice between Mia and Cogsworth... But I think I'll go with Cogsworth the Klink, and Plus, not that it makes a difference either way. Start by paralysing that Slowpoke with Thunder Wave. Then use Metal Sound to disrupt his thought patterns, and end it with a Thunderbolt.
Thunder Wave >>> Metal Sound >>> Thunderbolt
Replace any action with Shift Gear if Blue Tornado orders a Me First.