They identify as a specific gender, unlike other Warforged, don't live amongst common Warforged, and are more likely to seek other races. They have powerful psionic abilities that let them to strike with just their mind. Rangers also use wisdom for spellcasting and achieve many gain from firbolgs’ wisdom reward. https://tritondnd68012.bloginder.com/28718443/dnd-5e-builds-fundamentals-explained