i'd say to use ghost, dark, and/or bug type Pokemon. but for dark types, beware of reuniclus cuz it has focus blast. and sigilyph is part flying type if you are using bug types. and some of the Pokemon may have shadow ball.
at mr. psychic's house in saffron city (after you beat the elite four)
There is not a strategy to beat them,so the only advice i can give you is try to get all of your Pokemon to level 52,or try super effective hits,The elite four has a psychc,ghost,ground,and fighting type trainer. I really hope you beat the elite four trainer. actually, it is psychic,ghost,dark,fighting
You need to beat the elite four before you can get Zekrom.
psychic, dark, flying, ghost
beat the elite four.
Beat the elite four
You don't have to beat the elite four to het the TM 26 earthquake. All you have to do is search for it in the Relic Castle.
It surrounds the Elite Four, you can only go there after you beat the Elite Four the first time.
You can get one in white forest, but you have to beat the elite four first.
you cant
Ghost or dark type moves are super effective against Physic.
Relic Castle after you beat the Elite Four.