Metal Mosaic: class guide and playstyle

What does Metal Mosaic bring to a party?

Role: Pressure-powered melee. Core idea: Uses a changing pressure state to modify actions.

Check pressure before selecting the pair of actions, then consider the state after the first action. Strong turns come from sequencing rather than staying permanently at one extreme. Preserve a practical movement option for the pressure state you expect.

How do you unlock this class?

Campaign unlock; exact digital requirements not yet independently checked.

How should you build around its strengths?

Choose complementary actions that raise and lower pressure without sacrificing your main job. Add mitigation appropriate to your front-line exposure. When upgrading, look for cards that improve an awkward part of the cycle.

1. Read the starting pressure and the desired state for the second action.
2. Resolve the first action and its pressure change before confirming the second.
3. End the sequence in a state your remaining hand can use next round.

Which cards are named in digital sources?

These names are corroborated by official digital announcements. Their current level, full wording and unlock requirements should be checked in the in-game Codex.

• Beam Axe — official digital reference.
• Rocket Boots — official digital reference.
• Bronze Plating — official digital reference.
• Stress Vents — official digital reference.
• Unstable Core — official digital reference.

What commonly goes wrong?

Do not plan an Unstable Core loop through Emergency Reboot: official digital text rules out that recovery. A pressure preview can also change after the first half of a turn, so check the second action in its resulting state.

Where should you go next?

Read the Metal Mosaic build framework, compare party composition, and review card economy before committing to a long scenario.

Evidence boundary: Class alias and broad digital combat role confirmed by publisher announcement; exact 1.0 card text, perks and unlock path require Codex verification. Build is editorial guidance, not hands-on testing.

Sources and version notes

Researched on October 16, 2026 for the digital edition. Strategic recommendations are editorial advice; they are not represented as hands-on testing. Refer to current in-game tooltips when a patch changes an interaction.

• Official Frosthaven announcements and patch notes — Digital: 1.0 features and earlier patch-confirmed names. Historical fixes do not prove current bugs.
• Cephalofair official Frosthaven FAQ — Tabletop ONLY: class mechanics and rules context; not a claim of exact digital implementation
• Frosthaven asset index — Tabletop ONLY: seventeen class names and source asset identification, no digital numeric parity
• Arc Games Legacy of the Algox press release — Digital: Algox update and added classes
• Patch Notes 0.12.29862 — Primary official digital announcement; historical patch facts require current-version context.
• Patch Notes 0.32181 — Primary official digital announcement; historical patch facts require current-version context.
• Patch Notes 0.31273 — Primary official digital announcement; historical patch facts require current-version context.
• Patch Notes 0.3.31070 — Primary official digital announcement; historical patch facts require current-version context.
• Hotfix 0.12.2 — Primary official digital announcement; historical patch facts require current-version context.
• Patch Notes Hotfix 29497 — Primary official digital announcement; historical patch facts require current-version context.