Alocasia Regal Shield plants thrive in medium to bright indirect sunlight. 
Similar to other Alocasia, 'Regal Shields' will do best if you water when the top 1/4 of the soil is dry.  Alocasias are not a plant that should ever go completely dry- if the soil goes too dry, too often, the root system may become too stressed to bounce back and the plant can go dormant or die altogether.
Be carefule, this tipe of Alocasia toxic for pets.