Description: With Rock Polish and Swords Dance boosting Terrakion's already impressive Speed and Attack, Terrakion can be a huge force to be reckoned with. Add Terrakion's great offensive coverage due to its STAB moves, and you have the makings of an extremely potent sweeper.
Options: An Adamant nature can be used for more power
Counters: Wobbuffet is a teammate to Terrakion for several reasons: not only does it bait Dark-type attacks that grant Terrakion Justified boosts, it can also attract Dark-type Pokemon such as Darkrai and Tyranitar for Terrakion to switch into. As Terrakion can often have a hard time setting up due to its somewhat lackluster defenses and typing, for an even safer setup, Wobbuffet can also Encore a support or Dark-type move, allowing Terrakion to switch in and boost its stats as the opposing Pokemon switches out. As a plus, Wobbuffet can handle Fighting-type moves aimed at Terrakion's, and remove Choice Scarf users that try to outspeed and KO Terrakion.
This is a good moveset for terrakion (Pokemon #639) with the justified ability/trait, a Jolly nature, and equipped with Life Orb submitted by HyperBeam. For use in competitive Pokemon battles featuring an Export option and breeding guide.