Ἕκτορ ἒμ’ ὀτρύνει κραδίη καὶ θυμὸς ἀγήνωρ
The same formula is used when Diomedes volunteers, with Nestor’s name in place of Hektor’s. See the commentary on 10.244 for the connection between “heart and audacious spirit” (κραδίη καὶ θυμὸς ἀγήνωρ) and alternative warfare tactics like spying missions or ambush.