>>14536698There's some pokemen where multiple builds are an option, but often you just want their most significant traits and work on those.
Example for multiple builds:
Azelf has 115 speed and 125atk/125 special attack.
Because of its amazing speed stat most builds will be centered around that and go for 252 speed.
That way you can be sure that you can outspeed every fucker that has 110 speed with max speed EVs and you can use that thing to outspeed knowing that you will attack first no matter what (lets exclude natures for this example).
Now because it has even special attack and attack stats you can now choose between going for 252 atk or 252 sp.atk and build your offensive movepool around it.
Special atk is more popular because it has access to better special moves, but a physical attacker can catch people off guard and its also strong.
There's also a very popular lead build that is rather defensive that utilizes support moves and shit like stealth rock.
So this is one fucker with multiple choices.
Then there's others like Blissey that just go for one static build (def, sp.def 252) because everything else is mostly useless.