Vivid Marsh [Commander 2017] Kor Artificer your opponent cannot activate cards

your opponent cannot activate cards or effects until the end of the Damage Step

If you reveal a card named Hammer of Nazahn this way

Set: Seventh Edition Type: Creature — Djinn Rarity: Rare Cost: {4}{U}{U} Flying (This creature can't be blocked except by creatures with flying or reach

Set: Hidden Arsenal Card type: Tuner Monster Rarity: Secret Rare Attack: 1600 Defense: 200 When this card inflicts Battle Damage to your opponent by a direct attack

Channel — {3}{U}

Vivid Marsh [Commander 2017] Kor Artificer your opponent cannot activate cardsSet: Commander 2017 Type: Land Rarity: Uncommon Vivid Marsh enters the battlefield tapped with two charge counters on it. {T}: Add {B}. {T}, Remove a charge counter from Vivid Marsh: Add one mana of any color.