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Gamigin

The Eternal Sinner

Unit #031

HPPWRCPSpeedRangeTier
66 (+4)2 (+1)SlowLocalC

Abilities​

Passive​

After Gamigin dies, your opponent must Fuse and Exhaust Gamigin's demon card onto a Demon they control if they control any Fusible Demons. (Fused Demons have both names.)
Engine Implementation
def _gamigin_forced_fusion_trigger(
    state: GameState, event: GameEvent, demon: DemonInstance, depth: int
) -> GameState | None:
    """#031 Gamigin — Passive trigger: After Gamigin dies, force-fuse onto opponent's demon.

    Fires on FATALLY_WOUNDED when Gamigin IS the target (dying demon).
    Gamigin itself IS fatally_wounded — this is intentional. The trigger's
    effect is applied to the OPPONENT's board, not Gamigin.

    Effect: Pick the first fusible enemy demon. Fuse Gamigin's card as the
    bottom card and exhaust the resulting demon.

    "Fusible Demons" = non-fused (or Dantalion) non-familiar regular unit demons.
    Auto-selects first eligible target (deterministic; a full UI implementation
    would let the opponent choose which demon to receive Gamigin).

    CRITICAL: Gamigin's card data fuses onto top demon → top.fused_bottom = "031",
    top.current_hp += Gamigin's fhp (0), top.is_fused = True, top.state = EXHAUSTED.
    The fused demon retains the top card's speed, range, and lane.
    """
    from engine.data_loader import UNITS
    from engine.constants import DemonState

    # Only fire if Gamigin (this demon) is the dying target
    if event.target is None:
        return None
    if event.target.instance_id != demon.instance_id:
        return None  # A different demon is dying — not Gamigin's trigger

    # Gamigin IS fatally_wounded here — this is expected and allowed for this trigger
    # (the effect applies to the opponent, not Gamigin performing anything)

    # Find the opponent's side
    opponent = Side.PLAYER_2 if demon.owner == Side.PLAYER_1 else Side.PLAYER_1

    # Find the first fusible opponent demon (non-fused OR Dantalion)
    # "Fusible" = can accept a bottom card = not already fused (except Dantalion),
    # not a familiar (cannot_fuse_familiars = true)
    DANTALION_ID = "106"
    fusible_target = None
    for d in state.demons:
        if d.owner != opponent:
            continue  # must be opponent's demon
        if d.is_familiar:
            continue  # cannot fuse familiars
        if d.is_fused and d.unit_id != DANTALION_ID:
            continue  # already fused (exception: Dantalion)
        # This demon can receive Gamigin as bottom card
        fusible_target = d
        break

    if fusible_target is None:
        return None  # No fusible demons — trigger does nothing

    # Apply the forced fusion: Gamigin becomes bottom card of fusible_target
    gamigin_data = UNITS["031"]
    new_state = copy.deepcopy(state)

    # Find the top demon in the new state
    top_in_state = next(
        (d for d in new_state.demons if d.instance_id == fusible_target.instance_id),
        None,
    )
    if top_in_state is None:
        return None

    top_unit = UNITS[top_in_state.unit_id]
    # Apply fusion bonus: top.current_hp = top base hp + Gamigin fhp (0)
    top_in_state.current_hp = top_unit.hp + (gamigin_data.fhp or 0)
    top_in_state.fused_bottom = "031"
    top_in_state.is_fused = True
    # "Fuse and Exhaust" — the resulting demon is EXHAUSTED
    top_in_state.state = DemonState.EXHAUSTED
    # Existing damage preserved (lane preserved — no change needed)

    # Gamigin is NOT removed here — death resolution happens after triggers
    # The fusible_target now embeds Gamigin as bottom card

    return new_state

register_trigger("031", 0, _gamigin_forced_fusion_trigger)
Gamigin