riftb >Sets >Proving Grounds

Proving Grounds

is a high-stakes set in

Riftbound

that centers on a brutal, ever-shifting arena where factions send their fiercest champions to test strength, strategy, and loyalty. The lore follows a convergence of rival houses, rogue constructs, and exiled mystics drawn to an ancient battleground said to grant immense power to those who survive its trials. Mechanically, the set emphasizes escalation and adaptation, introducing the

Trial

keyword, which grants bonuses after specific combat conditions are met, and

Momentum

, a stacking effect that rewards consecutive aggressive plays. Many cards grow stronger through direct conflict, duels, or surviving damage, reinforcing the theme of endurance and dominance. Environmental arena cards also alter the battlefield with rotating hazards and buffs, forcing players to constantly adjust tactics as the fight unfolds.