How many Mod Cards per weapon?
Up to about three — verify in EA deck UI.

Hell Maiden Mod Cards: Boost, Effect, Spread, Miracle, and Curse mods per weapon. Three mod slots explained for Steam EA deck building — July 2026.
Mod categories per weapon and when to stack or discard.
Mod Cards customize Weapon Cards in Hell Maiden — attach up to about three Mods per weapon to unlock boosts, effects, spread patterns, miracle spikes, or curse gambles. This Hell Maiden Mod Cards guide covers all five categories from Steam store text and hellmaiden.wiki.gg, verified July 16, 2026.
Mods are half of Spirit Cards — see Spirit Cards hub for hand limits and collection. Deck framework: deck building. Weapon roles: weapons.
AstralShift describes Mods as the layer that lets you experiment, adjust, and plan hands between waves — not just passive stat sticks. Read card text; community nicknames lag patches.
Charms from Beatrice are separate — Charms — do not confuse global buffs with Mod slots.
| Mod type | Primary job | Limbo priority |
|---|---|---|
| Boost | Raw damage / speed | Medium — after Spread |
| Effect | Status / procs | Medium–High |
| Spread | AoE coverage | High |
| Miracle | Burst windows | Low early |
| Curse | Risk power spike | Avoid run one |
Boost — raises raw output, attack speed, or direct damage modifiers. Foundation Mod for boss phases when merged on Signature weapons. A-tier category in tier list bands.
Effect — adds status triggers, secondary hits, or conditional procs. Pairs with DoT weapons and poet blessings that amplify effects. Strong mid-run scaling.
Spread — widens hitboxes, adds projectiles, or increases coverage. S-band for Limbo swarms when merged — best first Mod type for kiting builds on best builds.
Miracle — high-impact spikes with cooldowns or conditions. B-tier early, A-tier once baseline clears exist — win-more, not run-one core.
Curse — trades penalties (self-damage, i-frame loss, reroll pain) for power. C-tier foundation, skilled B-tier gamble — never first Limbo clear core.
Each Weapon Card accepts up to about three Mod Cards. Slots are where builds actually happen — same Signature weapon plays totally different with Spread-Spread-Boost vs Boost-Effect-Miracle.
Discard Mods when deck UI offers swaps; Weapons mostly stay locked. If a Mod conflicts with your AoE plan, discard it — sunk cost is cheaper than a Minos wipe.
Slot order on UI may not imply priority — merged level and card text matter. Two Spread Mods merged high beat one Spread + two unrelated one-offs.
Do not fill all three slots day one — leave room for boss-phase Boost after Limbo wave six if offers cooperate.
Duplicate Mods merge/stack toward level three in demo/wiki documentation — verify cap in EA. Merging doubles down on a plan instead of diluting across types.
Merge Mods on primary Weapon first — sidearm Mod merges are luxury. Primary Signature + Spread Lv2 is a common Limbo clear checkpoint.
Rerolls (~three per run, demo-era) should fix dead Mod offers on primary, not chase perfect third slot before merges exist.
When merge UI appears between waves, prioritize same-type duplicates over new types unless new type fixes a boss gap for Minos.
| Weapon role | Mod 1 | Mod 2–3 |
|---|---|---|
| AoE kiting | Spread | Spread · Boost |
| Boss sniper | Boost | Effect · Miracle |
| DoT zone | Effect | Boost · Spread |
| Signature anchor | Spread or Boost | Match poet blessing |
AoE / kiting weapons — Spread + Spread + Boost. Limbo packs die faster; Minos adds stay controlled.
Single-target Signatures — Boost + Effect + Miracle for boss telegraphs. Add Spread only if add waves overwhelm you.
DoT / zone weapons — Effect + Boost + Spread (late). Reward movement from beginner guide kiting section.
Cross-role mistake: Spread on sniper Signature without Effect — wasted slot per deck building mistakes list.
Poet blessings may change which Mod type is best — revisit Mods after first Poet rescue.
Curse Mods are the highest skill ceiling Mod type — pretty damage, harsh penalties. Add one Curse only after Spread baseline and dodge muscle memory from controls.
Penalties vary by card — self-damage on miss, shorter dodge windows, reroll restrictions. Read full Curse text before accepting in level-up rush.
Pair Curse with sustain Charms from Beatrice Lv7+ — not with four unmerged weapons. Charms for sustain picks.
Curse gambles belong in best builds advanced section — not beginner Limbo routes.
Spread on wrong weapon role — sniper without adds to hit. Triple Curse before Minos. No merges — three different Mod types at Lv1 each.
Chasing Miracle run one — win-more without baseline. Ignoring discard UI — keeping dead Mod because "might use later."
Reroll hoarding — saving all three rerolls until boss then getting three irrelevant offers.
Fix path: Spread merge on primary → Boost for Minos → poet blessing → revisit tier list Pending weapon names.
Spread on AoE Signatures for Limbo/Lust packs · Boost on single-target boss burn once adds controlled · Effect for control when learning telegraphs · Miracle for win-more spikes · Curse only after Minos farmed.
Discard Mods that fight your Signature shape — three bad mods on one weapon beat four weapons with zero merges.
See best builds archetypes and tier list Pending weapon roles before hard-committing Curse.
Up to about three — verify in EA deck UI.
Spread merged on primary AoE or Signature — archetype, not one card name.
Yes — discard when UI offers swaps; Weapons stickier.
Power spike with penalties — advanced; read full card text.
Official wiki Spirit Cards / Mod pages.
Matched by build plan, shared topics, and guide progression — not random related links.