Not So Fast 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.) Counter an enemy spell or ability that chooses a friendly unit or gear.
[反应]（可在任意时机打出，甚至先于其他法术和技能的结算。） 无效化一个将友方单位或友方装备选为目标的敌方法术或技能。