Need one last hackmon for my team!

Question

Ok, so I've been getting into hackmons lately, but I don't like running typical, scummy sets. I like to be more inventive with my teams. So here's what I have so far, and I just need one last pokemon, that has a unique/unpredictable set. I've already tried the M-Banette set and Charizard Y into X, so don't suggest those.
Gengar-Mega @ Focus Sash
Ability: Adaptability
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Spore
- Quiver Dance
- Shadow Ball
- Sludge Wave

Rhydon @ Eviolite
Ability: Magic Bounce
EVs: 248 HP / 252 Def / 8 SpD
Bold Nature
- Heart Swap
- Baton Pass
- Taunt
- Rapid Spin

Garchomp-Mega @ Leftovers
Ability: Speed Boost
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Coil
- Dragon Rush
- Precipice Blades
- Iron Tail

Gardevoir-Mega @ Power Herb
Ability: Magic Guard
Shiny: Yes
EVs: 248 HP / 252 SpA / 8 SpD
Modest Nature
- Geomancy
- Light of Ruin
- Psystrike
- Barrier

Bisharp @ Black Glasses
Ability: Turboblaze
EVs: 248 HP / 252 Atk / 8 SpD
Adamant Nature
- Sucker Punch
- Pursuit
- Crunch
- Iron Head

(Your suggestion here)

Comments

Is Rhydon really the best Pokemon for that? Doesn't Chansey have better HP and less weaknesses?

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Yeah, I guess Chansey is a better answer for that, it's just that Rhydon has more defense and is more of a counterpart to Chansey. I'll switch that.

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Pikachu @ Light Ball
Ability: Imposter
EVs: 252 HP / 252 Spd
IVs: 0 Atk / 0 Def / 0 SpD
Naive Nature
-Belch

Sort of like Imposter Blissey, but instead of having tons of health it has 2 times the attack stats. Max HP for more tankiness, but minimum attack and defense stats so that you win in Struggle fights against Imposter Blissey. The reason that its only move is Belch is to force an opposing Imposter Blissey to use Struggle.