Stinging Licid

{1}{U}, {T}: This creature loses this ability and becomes an Aura enchantment with enchant creature. Attach it to target creature. You may pay {U} to end this effect. Whenever enchanted creature becomes tapped, this creature deals 2 damage to that creature's controller.

From Magic: The Gathering.

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6of9gnawmjpb1hwogv1vpq.