Giving it the name Shaymin is even impossible as you can only use 5 letters in a Japanese game, so definitely hacked.
I never said it was you and your pm readCyber End Dragon X said:BLASTOISE KING, I NEVER SAID MY SHINY MEWTWO FOR ALL OF YOUR SHINIES! I SAID SHINY MEWTWO AND SHINY MEW FOR YOUR SHINY DARKRAI AND SHINY GIRATINA! GOSH, MAKE ME LOOK BAD.
BLACK RAYQUAZA IM GONNA CHEW YOU OUT TOO! YOUR SHINIES AREN'T EVEN THAT GOOD AND YOU WANTED MY SHINY LEGENDARY FOR 1 OF THEM!!
IF YOU GOT ANY BEEF WITH THAT LET'S BATTLE!
and after that you kept bugging me for my shiny darkrai and giratina when i kept saying no then you kept going and i had to put you on myi will trade you a shiny mewtwo for all of your shinies