Declension table of ?pratikara

Neuter	Singular	Dual	Plural
Nominative	pratikaram	pratikare	pratikarāṇi
Vocative	pratikara	pratikare	pratikarāṇi
Accusative	pratikaram	pratikare	pratikarāṇi
Instrumental	pratikareṇa	pratikarābhyām	pratikaraiḥ
Dative	pratikarāya	pratikarābhyām	pratikarebhyaḥ
Ablative	pratikarāt	pratikarābhyām	pratikarebhyaḥ
Genitive	pratikarasya	pratikarayoḥ	pratikarāṇām
Locative	pratikare	pratikarayoḥ	pratikareṣu

Compound pratikara -

Adverb -pratikaram -pratikarāt