Blademaster Six-Star Evolve Star Gem

A diamond containing the purest power of Astral can promote the Senshi <Blademaster> Zaro's Star Rank.
You can give it to the Senshi via the "Give Gifts" button on the Senshi interface. You can raise the Star Rank up to Six-Star.
You need to have a One-Star Senshi before you can give gifts, and you can only raise one Star Rank at a time. After promotion, the original Star Energy will be zeroed.