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There isn't anything particularly screaming out 'HACK' in either of those two Pokemon; however, since they were obtained through Wonder Trade I wouldn't be so sure about it. They seem fine otherwise, so it's up to you I guess
Bulbasaur: Friend for both
Charmander: Heavy for shiny and Mega-Y shiny, Moon for Mega-X regular or shiny, Love for regular Zard and regular Mega-Y
Squirtle: Lure for both, Love for shiny specifically