Declension table of ?śastravat

Masculine	Singular	Dual	Plural
Nominative	śastravān	śastravantau	śastravantaḥ
Vocative	śastravan	śastravantau	śastravantaḥ
Accusative	śastravantam	śastravantau	śastravataḥ
Instrumental	śastravatā	śastravadbhyām	śastravadbhiḥ
Dative	śastravate	śastravadbhyām	śastravadbhyaḥ
Ablative	śastravataḥ	śastravadbhyām	śastravadbhyaḥ
Genitive	śastravataḥ	śastravatoḥ	śastravatām
Locative	śastravati	śastravatoḥ	śastravatsu

Compound śastravat -

Adverb -śastravantam