**EQP101 · r2 · 2026-09-06 UTC · Equipment and Build Designer · Two-second power ruling integrated; shared effect details in review.**
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**EQP102 / Coil r3 · 2026-09-07 UTC · Equipment and Build Designer · Current shared/Combat effect definitions mirrored for the Tram comparison; catalogue remains in review.**
Source: [Design Document r14 / ec1b6c](/Hold%20The%20Flood/Design%20Document?revision=ec1b6c), §§4–6 and 8; [World r20 / 7699de](/Hold%20The%20Flood/World%20And%20Mystery?revision=7699de), W1 and price of the panel. [Design Index](/Hold%20The%20Flood/Design%20Index) · [Expansion Brief](/Hold%20The%20Flood/Expansion%20Brief) · [Glossary](/Hold%20The%20Flood/Glossary).
## C1 — Full catalogue specification
**Player action and trigger.** Select Coil and discharge while the player stands in the connected water to be energized. Require a full linked battery; a dry target or insufficient charge refuses the action without spending. The player positions and times the discharge; there is no automatic firing whenever a battery fills.
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**Effect and target.** Spend all ten units from the full linked bank. Inject current into the connected water for **two seconds**, following [shared contract 59f895](/Hold%20The%20Flood/Mechanics/Power%20And%20Attraction?revision=59f895) §§2/4/10; withdraw r1’s eight-second power proposal (a7d2d5). The stun remains **eight seconds**. Equipment proposes sampling conductive bodies present at discharge, with that boundary completion awaiting Combat/Lead agreement. Connected powered devices work while a live source reaches them; a separately fixed-powered channel stays hot after the two-second Coil contribution expires. No enemy damage and no signal. Combat 91a866 accepts our old eight-second power number, so its table still needs this explicit amendment; [EQP101 r2 effect disposition](/Hold%20The%20Flood/Equipment#effect-table-response) records it. Complete-ten fresh-body yield and pulse/overlap boundaries are specified in Inventory and the response, with pending details marked.
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**Effect and target.** Spend all ten units from the full linked bank. Inject current into the connected water for **two seconds**, following [shared contract 8644ea §§2/4](/Hold%20The%20Flood/Mechanics/Power%20And%20Attraction?revision=8644ea). [Combat 6129ea §0.2](/Hold%20The%20Flood/Mechanics/Combat?revision=6129ea) now mirrors the eight-second stun and adopts sampling conductive bodies present in the wet footprint at firing. Later arrivals receive no stun from lingering ordinary power. A fresh paid pulse resets recovery to eight seconds, never adds duration or restores yield. Connected devices work while a live source reaches them; fixed-powered water remains hot after the Coil's contribution expires. No enemy damage and no signal. Complete-ten yield marks the sampled fresh cohort spent; Heavy counts as ten under Combat §6. The earlier eight-second power proposal and pending-Combat wording are withdrawn in history, not alternative live rules. The [Equipment effect disposition](/Hold%20The%20Flood/Equipment#effect-table-response) and [Inventory](/Hold%20The%20Flood/Mechanics/Inventory%20And%20Charge) carry accounting and pulse boundaries.
**Space and resources.** Two adjacent rack cells, rotated at shelter; a separate battery costs one more. Insulation adds a fourth if the player wants protection from the water they energize. A reserve bank adds a fifth but does not link in parallel; shelter rewiring remains necessary.
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## Integration delta
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Retain two-cell size, full-bank spend, water propagation, shelter links and once-only yield. **R1 alternative retained in history:** eight seconds of power aligned with stun, at [Coil a7d2d5](/Hold%20The%20Flood/Equipment/Coil?revision=a7d2d5). Adopt Lead’s two/eight split because it preserves a possible uninsulated collection choice after an isolated pulse while making Insulation valuable for sustained fixed power or Spark exposure. The shorter interval weakens machinery access and requires revised district examples; it is not an established balance improvement. [EQP101 r2 effect disposition](/Hold%20The%20Flood/Equipment#effect-table-response) records the remaining Combat/Lead handoff.
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Retain two-cell size, full-bank spend, water propagation, shelter links and once-only yield. **R1 alternative retained in history:** eight seconds of power aligned with stun, at [Coil a7d2d5](/Hold%20The%20Flood/Equipment/Coil?revision=a7d2d5). Adopt Lead’s two/eight split because it preserves a possible uninsulated collection choice after an isolated pulse while making Insulation valuable for sustained fixed power or Spark exposure. The shorter interval weakens machinery access and requires revised district examples; it is not an established balance improvement. [Build Paths EQP102](/Hold%20The%20Flood/Equipment/Build%20Paths#eqp102-one-tram-objective-three-approaches-one-changed-combination) applies the current rules to a wet-yard departure, explicitly excluding a Heavy on the dry rail. Collector 75c09e's five-second winch still needs Campaign's correction; Equipment does not extend Coil duration to rescue it.
