Q:
Can this MacBook run Guild Wars 2?
I don’t have one to test on, but the machine you describe appears to meet the stated minimum requirements. Given the low end graphics on that machine, I suspect that it would only run at low settings, with not particularly good frame rates.
So will it run at all? Probably.
Will it be as gorgeous and smooth as on a Windows machine with a dedicated graphics card? Probably not.
I played all night with same mac as you… play on minimal… But yes, it’s playable.