Nidorino can evolve only with a moon stone.
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Nidoran{male) LV.16 to Nidorino then use Moon Stone to evolve Nidorino to Nidoking
LV.58 because it learns horn drill and then evolve your nidorino intonidoking .
you evolve it with a moon stone
Oddly, you can evolve it quickly by exposing it to a Moon Stone.
Moon Stone