Combination Attacks

These are moves that are used when two or more moves are combined by any number of Pokémon.

Single Tech Moves

[Insert Element Boost here] Shell Blade - Combining a special attack with Razor Shell imbues the blade of the Razor Shell with the energy of that type (EX: Freezing (Ice); Blazing (Fire); Shocking (Electric);etc.) (Can often be an instance of Ability Mixing.)

Ice Aqua Jet - A combination of Aqua Jet and a freezing Ice-type move. Pulled straight from the anime.
Hypnotic Veil - A combination of Hypnosis and Aqua Jet, used to create a mesmerizing veil of light that shines down on the target or targets.
[Insert Element Boost here] Shell X-Slash - A combination of a powered-up Razor Shell and any slashing attack or Iron Tail. (Inspired by the X-Strike attack from Chrono Trigger)
Thundering Ice Shock - A combination of an Electric-type special attack (EX:Thunderbolt) and an Ice-type special attack (EX:Ice Beam).
Freezing Thunder Shock - Like Thundering Ice Shock, but the proportions are reversed (Ice-type special attack combined with Electric-type special attack).
Howling Void - A combination of Night Slash and Air Slash.
The Window of Opportunity - A combination of High Jump Kick and Reflect. The shattered Reflect launches shards at the target.
G-Max PsyVolt Storm - A combination of G-Max Volt Crash (G-Max Pikachu's signature G-Max Move) and Max Mindstorm (Psychic-type Max Move).
Hellfire Cut - A combination of Night Slash and Flamethrower.
Marble Screw - A combination of Thunderbolt and Psybeam. (Inspired by the Marble Screw from Futari wa Pretty Cure)

Trident Bomb/Pledge Bomb - A combination of Grass Pledge, Water Pledge and Fire Pledge.
Delta Force - A combination of a Psychic-type special move, an Ice-type special move and an Electric-type special move by way of The Power of Friendship or The Power of Love. (Inspired by the Delta Force Triple Tech from Chrono Trigger)
Max Delta Blast - Like Delta Force, but enhanced by the Dynamax Phenomenon.
Dual Punch Surprise Strike - A combination of Smokescreen and any two attacks that involve the users' fists (Needle Arm, Fire Punch, Crabhammer, etc.), using the Smokescreen as cover for the other two Pokémon to attack.

Dance of the Seven Swords - A combination of Razor Shell, Hypnosis and six different variations of the Elemental Shell Blade attack (Hypnosis is mainly used to generate the six illusory after-images to which the Elemental Shell Blade variations will apply).