Double G coins Card

In-game description
Use: G coin obtained in next 3 dance rounds is doubled.

Purpose
The in-game description clearly states what this card can be used for.

Only one Double G coins Card can be active at one time. It can be used in conjunction with a Double EXP Card or title effects.

Ways to obtain
Double G coins Cards are easiest to obtain by claiming the 10 vitality reward. This giftpack contains either a Double G coins Card or a Double EXP Card.