Automates the two Danger Zone triggers of the Nuclear Cavalier talent in the LANCER system:
- Aggressive Heat Bleed (rank 1) — deals +2 Heat on your first attack roll this turn while in the Danger Zone.
- Fusion Hemorrhage (rank 2) — converts Kinetic/Explosive damage to Energy and adds +1d6 Energy bonus damage on your first ranged or melee attack roll this turn while in the Danger Zone.
Danger Zone status is checked as of the start of that attack. Per Nuclear Cavalier's own wording ("If you enter the Danger Zone during your turn, this talent takes effect on your next attack") and Heat X (Self)'s wording ("Immediately after using this weapon or system, the user takes X Heat"), a weapon whose own self-heat crosses you into the Danger Zone doesn't trigger the bonus until your next attack. A world setting, "Allow same-shot self-heat trigger" (off by default), restores the same-shot behavior for tables that prefer it. For area-of-effect/multi-target attacks, the module prompts you to choose which target's roll counts as the "first attack roll," per official FAQ ruling. Does not touch rank 3 (Here, Catch!), which the base LANCER system already handles.
Requires the LANCER game system, v3.0.0 or later.
Screenshots

Aggressive Heat Bleed: the attack roll HUD, unmodified — the bonus applies automatically once you hit.

Aggressive Heat Bleed: the damage HUD with the +2 bonus Heat already added.

Fusion Hemorrhage: base Kinetic damage converted to Energy, with the +1d6 Energy and +2 Heat bonuses added.

Fusion Hemorrhage: the resulting chat card showing all three damage/heat rolls.

Multi-target attacks: a prompt lets you choose which target's roll counts as your "first attack roll," per official FAQ ruling.