Indeed, it is not rare at all. Here are some examples from a 15^th century text from Kashmir authored by Śrīvara. In his Jaina-Taraṅgiṇī he quotes his own cannon eulogy composed on the occasion of his public consecration of Sulṭān Zayn’s brand-new artillery pieces, and also quotes a dialogue with benedictive usage which immediately preceded the preparations for the Battle of Mallaśilā in the year 1452:

 

1) kriyāt (benedictive 3^rd person singular √kṛ)

[…] yantratantraiḥ

sthirāṃ pratiṣṭhāṃ kriyāt sa Mayaḥ || 1.1.75cd ||

“Would that he [as another] Maya consolidates [his] superiority with [the help of these] cannon formations.

 

2) stāt (√as + °tāt, 3^rd person singular imperative termination, applied however in the sense of a benediction [of cannons])

kalpaṃ stād yantrabhāṇḍam idam || 1.1.79d ||

“May this cannon last an aeon!”

 

3) kriyāḥ (benedictive 2^nd person singular √kṛ)

tvam evākaṇṭakaṃ rājyaṃ kriyā dharmakriyā bhajan |

vairiṇo vimukhā yāntu raṇe labdhaparābhavāḥ || 1.1.113 ||

“May you alone, pursuing lawful acts, rule a kingdom free of enemies! May [your] enemies suffer defeat in the encounter [and] take to flight, with their faces averted!”

 

Regards,

WS