Bloody 1,000 Character Limit...Anyways...
Personally, I recommend you bring...
Gallade w/ Glyph of Reflect, Items: Light Clay & Enigma Berry
EITHER
Tomohawk w/ Glyph of Roost, Items: Expert Belt & Enigma Berry
OR
Lucario w/ No Glyph, Items: Expert Belt & Enigma Berry
I am going to bring...
Garchomp w/ Glyph of Earthquake, Items: Landborn Gauntlet (To be approved) & Enigma Berry
Mollux w/ Glyph of Thunderbolt, Items: Molten Core & Enigma Berry
Also, for your convenience, Molten Core acts as a Pseudo Fire Spin, that is, when the Molten Core Pokemon deals damage with a Fire-Type Move, the struck Pokemon is put in a pseudo Fire Spin that deals 7 Damage to the stricken for 6 Actions, It can be refreshed, but it cannot stack.
Landborn Gauntlets simply boosts the BAP of Ground-Type moves by 5 & reduces Dig's EC by 1.
Finally, Glyph of Earthquake makes Earthquake single-target, allows it to be used regardless of terrain, & reduces its EC by 1.
Sounds Good? Otherwise, let us do this.