
Rishi: Atharvanic tradition (unspecified in the provided excerpt)
Devata: Kṣatriya/royal power; also the Gods collectively as granters of āyuṣ
Chandas: Triṣṭubh/Jagatī-like cadence possible; exact meter requires full pada scansion (not supplied with accents for all syllables).
It asks for protection from harmful hostility and for long life, by calling for the rightful Kṣatriya (protector) who upholds yajña and pūrti and thereby gains divine support.
Both in principle: the hymn invokes kṣatra (royal protective power) embodied in a Kṣatriya, while also appealing to the Gods collectively as the ultimate granters of āyuṣ (life-span).
No materials are mentioned in the verse. It can be used as a spoken petition on its own, or recited in connection with yajña/pious works to align the request with merit.