Jayce has the Heavyweight and Battle Academia traits in TFT Set 15. These traits provide bonuses when activated with other champions that share them, making Jayce a key unit for Heavyweight and Battle Academia comps.

Champions that share traits with Jayce include Aatrox, Darius, and Kobuko. These units can be paired with Jayce to activate trait bonuses and create powerful synergies.

Poppy is the strongest traitmate for Jayce with a 55.13% win rate when paired together. This champion shares the Heavyweight trait with Jayce and creates a powerful synergy.

Aatrox is the most popular traitmate for Jayce with a 20.83% pick rate. This unit shares the Heavyweight trait with Jayce and is picked 20.83% of the time.

To build team comps around Jayce's traits (Heavyweight and Battle Academia), focus on including other champions that share these traits to reach trait breakpoints. The most successful Jayce comps pair with Aatrox, Darius, and Kobuko to maximize trait bonuses.