How does the new Teemo's 'when I defend' trigger work - does he need to be played from hidden, or does it trigger whenever he becomes a defender?

Ruling: Teemo's trigger activates whenever and however he becomes a defender, not just when played from hidden. The 'or I'm played from Hidden' text has been removed from the card.

Sequence:

• Teemo can become a defender at the start of combat or when joining combat later
• Whenever he becomes a defender through any means, his 'when I defend' ability triggers

Nuances:

• 'When I defend' abilities trigger both when a unit becomes a defender at the start of combat and when joining combat later