Clue returned to hand

I was playing as Nissa against Ob. Played Weirding wood and the following turn played Nissa’s Revelation. In those draws was the clue Ob destroyed the previous turn.
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I’ve got a deck with Emeria Shepherd and Tamiyo’s Journal. It’s very silly. The Shepherd just always returns Clues to hand. That seems very weird and almost certainly wrong. But for the moment I need to take the Shepherd of the the deck because it’s not doing anything useful.