Declension table of mantravīrya

Masculine	Singular	Dual	Plural
Nominative	mantravīryaḥ	mantravīryau	mantravīryāḥ
Vocative	mantravīrya	mantravīryau	mantravīryāḥ
Accusative	mantravīryam	mantravīryau	mantravīryān
Instrumental	mantravīryeṇa	mantravīryābhyām	mantravīryaiḥ mantravīryebhiḥ
Dative	mantravīryāya	mantravīryābhyām	mantravīryebhyaḥ
Ablative	mantravīryāt	mantravīryābhyām	mantravīryebhyaḥ
Genitive	mantravīryasya	mantravīryayoḥ	mantravīryāṇām
Locative	mantravīrye	mantravīryayoḥ	mantravīryeṣu

Compound mantravīrya -

Adverb -mantravīryam -mantravīryāt