Keldeo

Secret Sword is a powerful attack that will allow Keldeo to warp near an opponent and slash a wide area with its extended horn. Keldeo (, Keldeo) is a creature from the series.

Origin
Keldeo is a Water/Fighting-type introduced in, and is a member of the  legendary quartet. Keldeo is categorized within the Pokédex at #647 as the "Colt Pokémon". It possesses two s and can switch from its ordinary to its Resolute Forme, the one appearing in Smash when learning Secret Sword.

is Keldeo's, learned only via specific move tutors. It has 85 base power and 100% accuracy, and despite being a Special move it uses the target's Defense stat when calculating damage.

As a Poké Ball Pokémon
Keldeo appears as a Poké Ball and Master Ball summon. Upon release, the screen turns a light shade of white, and Keldeo chases after opponents, swiping them with a high ranged Secret Sword attack with its horn. Each attack does 18%, and it will repeat this for about twenty seconds before disappearing. Keldeo is highly persistent with catching opponents, levitates while unleashing its attacks, and its attack does good knockback and possesses great range, making it difficult to simply run away from the Pokémon. Keldeo cannot be summoned on Jungle Hijinxs.

Trophy
In the Keldeo trophy is part of the Legend of Pokémon Black & Pokémon White Trophy Box.

As a Poké Ball Pokémon
Keldeo returns as a Poké Ball Pokémon.

Keldeo cannot be summoned on Fourside, Golden Plains, nor Green Hill Zone.