Current version can be seen here. Initially, this card cost 6g however was decreased to 5g after Alpha 3.2. After Beta 2.0 this card was decreased again to 4g. In Beta 4.3 the description of multiple cards such as this one had the 'Poisoned' effect changed to 'KR'. After Beta 6.0 Pollutant Gas was reworked to deal 1 damage to all enemy monsters on the field if not poisoned and 4 if poisoned as a means to give more board clearing capabilities to Perseverance. Soul Type: Perseverance Cost: * 6 (Original, Alpha 3.0) * 5 (Alpha 3.2) * 4 (Beta 2.0) * 3 (Beta 6.0) Effect: