Cygames and Axia announced the release of the new Shadowverse Arisa goods in Japan. In early July, you can buy from the official Axia website the Arisa designed power bank with 4000 mAh capacity and the smartphone flip case.
The price will be 4800 Yen + tax for the power bank and 4000 Yen + tax for the case. The power bank comes with micro USB cable.
Axia URL: http://axia-info.com/