Garrus is about to inform whoever is on the line that Arbitraitor is actually the problem, but the words catch in his throat as Rico steps forward, passing through the barrier like it wasn't even there.

That's a problem, and for the first time in this entire encounter, Garrus looks a little bit concerned about the outcome.

That concern vanishes quickly though as Garrus's foot slides back and he crouches into a combat stance, bringing his hands up to his chin. Part of him wants to bark out a warning, but if Rico had any intention of standing down, he would have stayed inside of the barrier. That blood-stained grin was a bloodstained promise that he'd keep on coming as long as he was physically able to, and if he wanted to avoid any injury, Garrus needed to put Rico down quickly.

So the moment Kubo's birds block Rico's line of sight, Garrus darts in with a hard right hook towards Rico's ribs.