Because it OHKOes Gligar with a Priority move and resists Gligar's main STAB?
Darkamber8828: Taunt is pokemon-cussing, right?
DarkSlay: Nah. I thought it was more of the tounge sticking out kind of thing that pisses off people.
DarkSlay: Not Pokemon actually cussing out one another.
DarkSlay: "AYE FUCK YOU SKARMORY"
(23:31:48) +RankingBot: Your rank in Standard LC is 1/415!