Curiosity

Curiosity doesn't trigger if the enchanted creature deals damage to a planeswalker or to a battle.

Wotc — September 01, 2023

You draw one card each time the enchanted creature deals damage to an opponent, no matter how much damage it deals.

Wotc — September 01, 2023

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.

Wotc — September 01, 2023

"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.

Wotc — September 22, 2011

Any damage dealt by the enchanted creature to an opponent will cause Curiosity to trigger, not just combat damage.

Wotc — September 22, 2011