Tap a position to add a player
Players only gain and give chemistry when placed in one of their preferred positions — the card's main position or any of its alternate positions. Substitutes on the bench neither give nor receive chemistry. Chemistry builds from shared Club (2/4/7 players), League (3/5/8) and Nation (2/5/8) thresholds — each tier reached adds a chemistry point, up to 3 per player and 33 for the squad. Icons and Heroes always hit full chemistry in position: Icons add +1 to every league and +1 to their nation, Heroes add +1 to their league. Special item types like World Tour, Squad Foundations, Cornerstones and FOF Captains carry extra chemistry boosts — the builder applies them automatically.