You are not in charge of making a underwhelming pokemon much stronger, but you can only do two things.

You can change its stats how you see fit, but its BST must stay the same, you cannot make ts base stat total any higher.

You can change its typing. Obviously, it must retain at least part of its old typing. (you could make Pigeot flying/electric or even normal/electric for God knows what reason, but you couldn't make it dark/dragon or something retarded.)

Changing types means it can learn attacks of that type now, but within reason.

So, what do you fix, /vp/?

pic unrelated.