Apply Low Ecaz opponent-owned battle lead choice

docs/RULE_DECISIONS.md

@@ -1254,6 +1254,7 @@ dedicated retrieved worked FAQs. [Contract and remaining limits](HOMEWORLD_OCCUP
 | Homeworld custody and mobility | Physical home/visitor groups, population thresholds, tariffs and transport permissions retain distinct sources; Homeworld immunity is not universal immunity. | [Homeworld rules](HOMEWORLD_RULES.md), [benefits](HOMEWORLD_BENEFITS_RULES.md), [mobility](HOMEWORLD_MOBILITY_RULES.md), [invasion](HOMEWORLD_INVASION_RULES.md), [Guild transport](GUILD_HOMEWORLD_TRANSPORT_RULES.md) |
 | Ix High paid-Cyborg bonus | Provisional composition: observe High before the accepted ordinary group; add up to two actual remaining Suboid Tanks per paid Cyborg outside normal allowance/free quota, without Recruits multiplication or future debt. Preserve the paid invoice and original cancellation/stop outcomes. Prior La La La suppresses new grants; a delivered bonus is one existing free-return income event, not a second award. The card establishes the grant; quota, shortage and event classification are application policy, not a located Ix FAQ. | [Current contract and source boundaries](HOMEWORLD_BENEFITS_RULES.md#provisional-ix-high-paid-revival-bonus--25-october-2026) |
 | Low Homeworld / Tleilaxu revival prevention | Provisionally prevent the qualifying return as a whole while preserving the printed Low free rate. No independent bonus-only return, cost, quota use, revival income or new High follow-up arises from a stopped event. Quiet and pending native special-Karama windows share the same eligibility. Retain the 24 October Ghola phase4 cutover and Emperor special immunity. This event/advantage composition is not a located combined FAQ. | [Current source and policy](HOMEWORLD_BENEFITS_RULES.md#provisional-low-homeworld-revival-prevention--25-october-2026) |
+| Low Ecaz battle chooser | At current native population0–6, the printed Homeworld penalty gives the opposing faction the existing choice of Ecaz or its ally as combined-battle lead. High7+ and no-World retain Ecaz. Capture the chooser when the original battle opens; existing pending decisions keep their owner. Selected plan/payer/physical armies and later Occupy cancellation remain unchanged. No new numerical ruling or coalition is introduced. | [Component source and current contract](ECAZ_OCCUPY_RULES.md#low-ecaz-opponent-owned-lead-choice--25-october-2026) |
 | High Richese reserve accompaniment | The printed High card permits reserve forces beside a No-Field. Provisionally bill one marker plus the actual paid companions as one rounded ordinary group, observe High before that group and permit its completed shipment to cross Low. Hidden value stays in reserves; optional Smuggler reserves an additional real free counter. Original No-Field/Guild decisions and invoices remain, and the two-token Cunning route retains its separate contract. Combined tariff and grouped threshold timing are composition policy, not a printed worked example. | [Current prototype and boundaries](HOMEWORLD_RULES.md#high-richese-mixed-shipment-prototype--25-october-2026) |
 | High Richese / Nexus Cunning paid group | Provisionally price the pair as one unit plus explicit paid ordinary counters; reserve the paid group first, then immediately materialize only the remaining stock for the faceup token. Observe High before the atomic group, permit crossing Low and retain the concealed token's later reserve-capped reveal. Original Nexus spend, two-token history, No-Field cancellation and Guild stop remain. No new Smuggler pair or retrofitted quantity; the later purchased-rate composition below is separate. This is combined pricing/allocation policy, not a located worked example. | [Current combination contract](NEXUS_RICHESE_RULES.md#high-homeworld-cunning-accompaniment--25-october-2026) |
 | Purchased Karama / native Richese Cunning | Provisionally apply the original independent half-normal, bank-paid grant to one pair unit plus any paid High companions, rounded once. Bind original beneficiary/owner/optional activation card even at unchanged city fee. Keep live claimed-cost history, original No-Field unused-grant/spent-Nexus outcome and existing provisional Guild-stop exact-card refund. No native Guild rate or replacement grant is invented. | [Current source and boundaries](NEXUS_RICHESE_RULES.md#purchased-karama-rate-with-native-cunning--25-october-2026) |