Mawile

Just a random suggestion, but would a priority tailwind + u-turn/switch from Talonflame help?
You have to be careful using trick room, it's a double edged sword. It's really high maintenance to keep up, and no hold item to prolong the effect. Opponents can also stall with protect and substitutes until the effect expires. Even though Mawile is pretty slow, there are a few things that are more powerful yet even slower than it. Not like many people use them, but Rhyperior and Steelix are huge physical tanks that can ruin its day.

Anyway, maybe you can use a water type/rain support to soften up the fire and ground types, as well give you coverage for those.

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Nevermind that Shuckle would find a Trick Room team to be hilariously good fun. But I've yet to run into anyone else who uses Shuckle...

At any rate, if anything had to go I'd say Crobat. He adds more Stealth Rock and Electric weakness to the team without you having much to counter it (switch into Salamence + Earthquake?). It is unaffected by Sticky Web, though, which is nice. You don't seem to have many options to deal with bulky Water types - perhaps something like Venusaur with Black Sludge would work? Toxic+Leech Seed+Sludge Bomb/Venoshock+Grass move of choice/Rest maybe? It'd still give you a strong way to deal with Fairies while letting you soak up Toxic Spikes and wear down walls. Downside being that it opens you up to more Fire abuse.[/COLOR]