Counters as a general concept is a very basic concept in fighting games; Lucario, Marth, Ike, Pit (formerly) Greninja, Little Mac, Mario, Peach, even Rosalina has a move that functions as a sort of counter to something.
Unless it has a unique function, like Rosalina's Gravitational Pull that deflects projectiles and pulls in items, it won't be seen as a unique ability.
Same with a chargable attack/projectile (Marth, Lucario, Mewtwo, Link, Samus, Donkey Kong, many, many more) or a dash (Ike, Lucario, Sonic)