Polar Metal is a Drive Disc set in Zenless Zone Zero. Its 2-piece and 4-piece bonuses are below.
2-piece bonus
Ice DMG +10%
4-piece bonus
Increase the DMG of Basic Attack and Dash Attack by 20%. When any squad member inflicts Freeze or Shatter, this effect increases by an additional 20% for 12s.
Story
A Drive Disc burned with specialized Ether technology offering personalized attribute amplification to the user.