>>47198599How about this?
>Rapidash - Heat Rock: Flare Blitz, Sunny Day, Bounce, Iron Tail>Tangrowth - Light Clay: Power Whip, Earthquake, Sleep Powder, Reflect>Quagsire - Leftovers: Earthquake, Encore, Waterfall, Ice Punch>Infernape - Life Orb: Fire Blast, Close Combat, Thunder Punch, Vaccuum Wave>Magmortar - Choice Scarf: Flamethrower, Focus Blast, Psychic, ThunderboltRapidash still sets up Sunny Day, which Tangrowth can take advantage of with Chlorophyll
Tangrowth is his answer to Water, Ground, and Rock types
Quagsire takes care of opposing Rock and Fire types, which both resist his own Fire types, as a plus it also has Water Absorb to withstand any opposing Water types
While Infernape and Magmortar are his Fire powerhouses
Quagsire might be a bit redundant with Bertha since I think she has one too but you could always adjust her team accordingly too
Then in the rematch, throw in another Fire type like Houndoom or Arcanine