But then, I'd be fearless too
With my own forcefield
As marines do with Terrans, Zealots share many characteristics with their race in general. They are expensive, but powerful. Good at hit-and-run, but no slouch in a tow-to-toe fight. They are good right out of the gate, and once they get their upgrades going, watch out! Isn't it interesting how much you can learn about an entire faction just from its tier-1 unit?
And on a related note, how cool would it be to have a personal forcefield?