when i summoned raylong, it showed me a black raylong instead of a
green one but it gave me a green egg, is raylong supposed to be
black, or is it a glitch?
The raylong that gave you the egg WAS shiny, given why the egg
wasn't black. No, it isn't a glitch, just a rare chance for the
raylong to give you the egg be black. P.S Just because the raylong
that gave you the egg was shiny does NOT mean the raylong in the
egg will be shiny either.