>>55117619How about this for base or cringe.
>Play new pokemon game.>Finish main story.>Play post game.>Mountain top cave area that was inaccessible for some reason now possible to enter.>Go in >Edgy looking hooded figure stands >Strikes a trainer pose at random from various pokemon media>Fight starts>Double battle trainer using pairs of legendaries>Mewtwo and mew>Rashiram and Zekrom>Groundon and Kyogre>Two pairs of counter part legends chosen at random.>Third set is a pair of third legend pairs>Garitina and Rayquaza>Kyrem and zygarde>Necrozma and eternatus >Trainer claps silently and retreats via ultra wormhole upon defeat.Third pair rolled at random.
Honestly just think of this as being a surprise bitch like the mysterious figure in birth by sleep. Probably better ways to do this though