Face Out of Sight wrote:All on-guard cards are returned to owner's hands. At the end of any turn, all wounded agents and tapped agents are returned to their owner's hand. Cannot be duplicated. With a sudden flick, quick as lightning, an apple left his hand and hit Bill square in the nose. He ducked too late, and curses came from behind the hedge.-LotRI
"All on-guard cards are returned to owner's hands." sounds like a directive i.e. if to interpret it consistently with interpretation of texts of Gates of Morning or Doors of Night, it should be executed once when the card resolves. It is not an effect that works continuously, as long a card is in play.
Of course at a time of resolution of a resource long-events there are no on-guard cards placed.
So in practice the phrase is a doing nothing text.
I propose the following erratum:
"As long the card is in play all on-guard cards are returned to owner's hands. At the end of any turn, all wounded agents and tapped agents are returned to their owner's hand. Cannot be duplicated. With a sudden flick, quick as lightning, an apple left his hand and hit Bill square in the nose. He ducked too late, and curses came from behind the hedge.-LotRI"
EDIT: Changed title of thread to "WITHDRAWN - Face Out of Sight" to reflect the new status of the proposal.