Deck build

Ask the deck model: fixed, constructed, draft, run-builder, rotating-pool, hybrid, or existing.

Contract

Publish:

• stable deck_ruleset_id and revision
• stable card_id plus card-definition revision
• legal deck constraints
• canonical zone IDs and move rules
• draw/shuffle/mulligan policy
• cost/resource owner references
• rng-seed stream reference for stochastic ordering
• persistence/reset behavior

Ownership

This skill owns deck composition rules and card movement between canonical zones. Card effects route to their gameplay owners; resources route to their own meter/economy skill; RNG algorithm/state stays in rng-seed.