Cannon Barrage is a Riftbound card. Compare listings from Singapore Riftbound sellers on CardJio, then jio them on WhatsApp.
[Reaction] (Play any time, even before spells and abilities resolve.) Deal 2 to all enemy units in combat.
[反应]（可在任意时机打出，甚至先于其他法术和技能的结算。） 对战斗中的所有敌方单位各造成2点伤害。