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  "lessons": [
    "v6 keeps the v4 threat-conditioned trunk but predicts a card-conditioned 18\u00d732 placement heatmap instead of a single XY point.",
    "Tile cross-entropy models multimodal legal placements; expected XY is retained for compatibility while rollouts can sample tiles.",
    "Training can hide unrevealed opponent cards so the deck encoder is less dependent on an offline oracle deck.",
    "This is an offline action-prior experiment; it does not restore missing arena state or establish live-play readiness."
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    "rationale": "Offline-only experiment; do not run live yet."
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}