Rulings

• Curiosity doesn't trigger if the enchanted creature deals damage to a planeswalker or to a battle.2023-09-01
• You draw one card each time the enchanted creature deals damage to an opponent, no matter how much damage it deals.2023-09-01
• If you control Curiosity and it's enchanting an opponent's creature, you won't draw a card when that creature deals damage to you. The creature has to deal damage to one of your opponents for the ability to trigger.2023-09-01
• "You" refers to the controller of Curiosity, which may be different from the controller of the enchanted creature. "An opponent" refers to an opponent of Curiosity's controller.2011-09-22
• Any damage dealt by the enchanted creature to an opponent will cause Curiosity to trigger, not just combat damage.2011-09-22