Allure of Riches

Treasures you don't control enter the battlefield
tapped.
Activated abilities of creatures you don't control
with lesser mana value than the number of
Treasures on the battlefield can't be activated.
At the beginning of each player's upkeep, that
player creates a Treasure token. (It's an artifact
with ''{t}, Sacrifice this artifact: Add one mana of
any color.'')