Ranked ladder
Steam describes a highly competitive ranked ladder and encourages players to build a deck for opponents around the world. It does not publish rank names, rating thresholds, season dates, or matchmaking rules on the store page.
Challenge a friend
The store page says players can challenge a friend directly. Check the in-game interface for current invitation and availability steps; the public listing does not document them.
Review each match
Because the game emphasizes adapting to opponents, note which decisions helped or hurt your plan. Treat personal results as observations, not universal balance proof.