When blue Teemo hits 3 hidden cards with his ability, do you have to pay deflect for every hit?

Ruling: You only have to pay deflect once when you target, not for each card revealed.

Nuances:

• Teemo has received errata that specifically clarifies this interaction
• The errata changed the ability to only trigger "when I defend" rather than "when I play or defend"
• Under current rules, "when I defend" also activates when Teemo gets flipped in combat, making the ability effectively similar but removing the play trigger to prevent double-triggering