Note : I don’t speak Korean so my translation is from Google translation then be not 100% accurate.

1) Jewelry system

This system will bring new type of equipement that will have empty slots. Those slos are for gems. Those gems will have different kind of stats that will help your equipement become better than before. I will translate later a guide about this new system.

Source : Gamevil Korea

2) Synthesize card

The cards will need to be the same rank/color.

Source : Gamevil Korea

3) Arena costumes

The Arena shop will be slighty revamped allowing new tabs of items to be purchased : gems and ally (just for enhancing) that you will be able to buy with arena coins.

Source : Gamevil Korea