[Sorry could edit title to skeleton] The best stallbreaker that is out there in Ubers. Has access to the best ability Shadow Tag and to add a pinch of salt, it has acces to the gems like Taunt, Perish Song, Dbond. What more do u want from life. Trap dem lugias, support Arceus, Chanseys, Thorns, lead smeargles. Make those kangas and ekillers set up to +6 and finish them in style. With rocket speed dbond gonna take ya down ez. Recommended Sets {1:}Gengar@Gengarite Max speed timid and max hp Protect Perish Song Substitute Dbond(better)/Taunt {2:}Gengar@Gengarite max speed and spatk, timid nature Protect Dbond Taunt Ball\Bomb\Blast(better for ekiller and kanga and dialga and chan). Checks:well u wudnt wanna be messin with Yvel and Gira O. Try it and it wont fail u.
You wanna post this in the gen 6 analyses for starters, not to mention adhere to the analysis format (i.e. skeleton).
Wrong generation, wrong format and CM Lugia can win against Mega Gengar if it tries to switch in. Try again after looking at how other people format their analyses.