Master Duel

Mysterune Deck Introduction(ルーン)

April 30, 2026 · Updated July 31, 2026 · Master Duel

Deck Guides

Mysterune Deck Introduction(ルーン) covers how the Runick strategy actually plays: what the engine searches, how boards are built, and which cards matter most in current formats.

Deck identity

Runick is built around Fusion access and contact/material lines. The core loop is to convert early searches and extends into a resilient board, then use follow-up to punish overextension.

This overview is especially useful for readers who need a practical overview before theorycrafting end boards.

Key cards to know

Priority names in most Runick lists include Runick Fountain, Runick Flashing Fire, Runick Destruction, Runick Dispelling, Runick Freezing Curses, and Runick Golden Droplet. Study their search/extend timing first—tech cards only matter after the engine is consistent.

Additional pieces often seen in sample lists: Hugin the Runick Wings, Geri the Runick Fangs.

Build notes

A practical Runick build usually keeps a dense engine package, enough extenders to play through one interruption, and a flexible non-engine slot for hand traps or board breakers depending on the expected metagame.

When testing, track which starters are brick-prone and which extenders are redundant. Cut low-impact one-ofs before cutting engine density.

How to practice

Solo combo until you can sequence the main line without hesitation, then practice interrupted lines (Ash, Imperm, Nibiru windows). After that, tune ratios for your local or Master Duel ladder meta.

Use the related cards section below as a checklist while refining your deck list.