When Tideturner is played from hidden, does it trigger 'When I Defend' abilities on units that are moved into combat?

Ruling: Yes, units that become defenders after combat starts should still trigger their "When I Defend" abilities when moved into combat by Tideturner played from hidden.

Nuances:

• This does not work with "When I Attack" triggers when playing from hidden, because if you control a hidden card, you control the battlefield and would never be assigned as the attacker
• The current wording on Tideturner will receive an errata (likely to clarify it can target any unit when revealed from hidden, not just units at the current location)
• This ruling is based on developer clarification rather than explicit rules text