Massacre [Nemesis] Human Mercenary Knight that player can't cast spells

that player can't cast spells or activate abilities and plays with their hand revealed

Set: Lorwyn Type: Artifact Rarity: Common Cost: {0} {3}

Set: Limited Edition Alpha Type: Creature — Dwarf Rarity: Uncommon Cost: {2}{R} {T}: Destroy target Wall

Set: Aether Revolt Type: Legendary Planeswalker — Tezzeret Rarity: Mythic Cost: {4}{U}{B} +1: Reveal cards from the top of your library until you reveal an artifact card

Massacre [Nemesis] Human Mercenary Knight that player can't cast spellsSet: Nemesis Type: Sorcery Rarity: Uncommon Cost: {2}{B}{B} If an opponent controls a Plains and you control a Swamp, you may cast this spell without paying its mana cost. All creatures get 2 2 until end of turn.