• Hold to charge, the saber wound low behind you (1.5 seconds at most). Its Qi is paid when you let go.
• Let go: a single level cut sends a cutting wave 12 blocks straight ahead: ×1.0 uncharged, up to ×1.8 fully charged.
• It stops at a wall and after three bodies.
• Thunder: a crescent of lightning that goes through everything, walls and bodies, and electrifies.

Unlocked by the quest The Drum Answers.