Revel in Riches [Mystery Booster] Betrayers of Kamigawa Promos Your opponents can't cast spells

Your opponents can't cast spells of the chosen color

as is Chaos Orb

they tap all lands with mana abilities they control and lose all unspent mana

Set: Unlimited Edition Type: Creature — Demon Rarity: Rare Cost: {3}{B}{B}{B} {T}: Destroy target land

At the beginning of your upkeep

Revel in Riches [Mystery Booster] Betrayers of Kamigawa Promos Your opponents can't cast spellsSet: Mystery Booster Type: Enchantment Rarity: Rare Cost: {4}{B} Whenever a creature an opponent controls dies, create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.") At the beginning of your upkeep, if you control ten or more Treasures, you win the game.