Any discussion for a homebrew race will always have Detect Balance used to calculate how balanced the race is. I'm curious to see how much the tool can be abused.
Thus my challenge is to create a race that detect balance would count as 'balanced', which I'm defining as between 24 - 27 points. Despite that I want you to make the most broken race as possible.
This race can be built with a specific class or ability in mind for the class, though obviously you would then need to explain the class you would be playing to exploit the power of the race. The only caveat to this is that the abilities and/or class(es) you pick must generally be considered balanced, or underperforming, to begin with. The cheese should be limited to the race you created.
I'll allow new traits that are slight tweaks of things listed on detect balance so far as, in isolation, the trait looks to be equal to or weaker then an existing defined trait. This option only allows you to make tweaks to existing traits, no creating a completely new and impossible to point trait from scratch. You must provide justification for the point total you give a trait you modified. If an argument could be made for multiple points assume the tweaked trait has the higher point total.
I define overpowered as "most capable of surviving and completing objectives in a real campaign". I know this is highly subjective, but any attempt to give a more measurable definition leads to insane min-maxing for just that definition and likely results in an unplayable race. This race must actually be functional and useful in a real campaign. You cannot presume you know what your DM will throw at you, she doesn't tend to pull punches but she is known to at least be fair. In other words if you take vulnerabilities to something that frequently appears you better have a plan to deal with them, but you don't need to presume an encounter entirely created just to screw with you either.
You may pick what tier of gameplay you're focusing on exploiting, though in the event of a 'tie' the race that is at least viable in all tiers get's preference over one that would struggle in a different tier. Needing fewer then the 27 allotted points to create your broken race will also result in bonus points.
Only official sources may be used.