Is it normal to get a 27 stat boost when EV training?

Question

This is my first time EV training, because I just learned how. I'm more used to like, 17 or 12, but when my lugia leveled up after beating who knows how many psyducks and golducks, it gained 27 special attack points holding the power lense... Is that normal?

Answer 1

Yeah, because the maximum amount of points a Pokemon can get in a Stat after level up is 63. So that's completely normal.