The atomic attack combos

[Kaboom]

If anyone has any smashing combos, either with one or two Pokemon, put it here! (Unless it's a super-top-secret one)

My favourites are:
Shedinja + Ditto
Ditto Transforms into Shedinja - you get a Pokemon with Wonder Guard and a ton more HP than Shedinja!

Altaria + Wobbuffet
Altaria uses Perish Song. Opponent can't switch out due to Wobbuffet's Shadow Tag. When the Perish Count reaches one, both your Pokemon switch out, leaving the opponents to faint. Guaranteed three-turn double KO provided Wobbuffet survives.

Articuno
Articuno uses Mind Reader, followed by Sheer Cold. Guaranteed two-hit KO provided Articuno survives and the opponent doesn't switch out.

[HobbesI]

Shedinja + Ditto...? Good combo... but the other two are very common. Another good combo...

Porygon-Z + Steelix
Porygon-Z uses Trick Room. Both pokemon have low speed, going first.

[FreezeWarp]

Its not that good, but Recoil Attacks with the Rock Head ability. I'm thinking of moving this.

[Kaboom]

I'm thinking of moving this.
Where to and why?

Porygon-Z + Steelix
Porygon-Z uses Trick Room. Both pokemon have low speed, going first.
OI! This is Ruby/Sapphire/Emerald - no Porygon-Z allowed!

[HobbesI]

Oh. I forgot. anyway...
Substitute x4 + Reversal + Salac Berry
OKHOs pokemon that don't resist it.