Pick a signature move(s) for each Pokemon!

There're plenty of Pokémon out there with signature moves, a move usually unique to that said Pokémon. For example, Reshiram's Blue Flare and Giratina's Shadow Force. Signature moves aren't exclusive to just legendaries though, with Pichu, Pikachu and Raichu having the signature move Volt Tackle.
Another signature move example is Heracross and Megahorn. The interesting thing about Megahorn however is that other Pokémon can also learn the move, which had me wondering... If you could pick a signature move for each Pokémon, what links would you make? Feel free to link a move with different Pokémon and vice versa.
For example, the move slash could be linked with Linoone, but also for Zangoose. Zangoose could also be linked with Hone claws.
Comment the links you would make and include a reason! To start things off, I'll link tri-attack with Dodrio. Dodrio has three heads with different personalities, which suits tri-attack quite well. Doduo could be linked with double hit for a similar reason, maybe?