I only take Pokémon from the North American version; no nicknames.
I'll trade a lvl 100 for any-lvl shiny and/or
better IV's Pokémon, and a lvl 100 shiny or
better IV's Pokémon for any-lvl shiny and
better IV's Pokémon. Feel free to inquire about my lvl 100 shinies. I can get my other shinies or any desired Pokémon (I have all 649) to lvl 100 for purposes of trading. I will not trade a shiny for a non-shiny unless the non-shiny has perfect IV's.
I'll give a full set of starters (all 15) for a shiny.
I'll give custom nickname (if I'm OT) and move set, but I do not do custom nature, ability, EV's (negotiable), or gender.
My lvl 100s:
My events are off-limits.