Once you have reached Gold T2 (3-star) with one Chief Gear, you will gain access to the Chief Gear Exchange System. This system allows you to trade one Chief Gear upgrade item for another.
Here are the Material Trading requirements:
Material | Trade Cost |
---|---|
Lunar Amber (1) | 10 Design Plans |
Design Plan (1) | 10 Polishing Solutions |
Design Plan (1) | 1,000 Hardened Alloys |
Polishing Solution (3) | 1 Design Plan |
Polishing Solution (1) | 200 Hardened Alloys |
Hardened Alloy (300) | 1 Design Plan |
Hardened Alloy (50) | 1 Polishing Solution |