Metalfoes Deck Introduction（メタルフォーゼ） covers how the Metalfoes strategy actually plays: what the engine searches, how boards are built, and which cards matter most in current formats.
Deck identity
Metalfoes is built around Pendulum scale setup and recurring bodies. 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 duelists learning the deck’s starter ratios before optimizing tech choices.
Key cards to know
Priority names in most Metalfoes lists include Fullmetalfoes Fusion, Metalfoes Fusion, Parametalfoes Fusion, Rescue Rabbit, Unexpected Dai, and Toy Box. Study their search/extend timing first—tech cards only matter after the engine is consistent.
Additional pieces often seen in sample lists: Doll Happiness, Draco Face-Off.
Build notes
A practical Metalfoes 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.