Declension table of ?viṣṇvavatāra

Masculine	Singular	Dual	Plural
Nominative	viṣṇvavatāraḥ	viṣṇvavatārau	viṣṇvavatārāḥ
Vocative	viṣṇvavatāra	viṣṇvavatārau	viṣṇvavatārāḥ
Accusative	viṣṇvavatāram	viṣṇvavatārau	viṣṇvavatārān
Instrumental	viṣṇvavatāreṇa	viṣṇvavatārābhyām	viṣṇvavatāraiḥ viṣṇvavatārebhiḥ
Dative	viṣṇvavatārāya	viṣṇvavatārābhyām	viṣṇvavatārebhyaḥ
Ablative	viṣṇvavatārāt	viṣṇvavatārābhyām	viṣṇvavatārebhyaḥ
Genitive	viṣṇvavatārasya	viṣṇvavatārayoḥ	viṣṇvavatārāṇām
Locative	viṣṇvavatāre	viṣṇvavatārayoḥ	viṣṇvavatāreṣu

Compound viṣṇvavatāra -

Adverb -viṣṇvavatāram -viṣṇvavatārāt