Edison format ruling
An Owl of Luck

Card effect (current official text)FLIP: Select 1 Field Spell Card from your Deck and place it on top of your Deck. If "Necrovalley" is on the field, you can add the selected Field Spell Card to your hand instead.
Rulings
FLIP: Select 1 Field Spell Card from your Deck and place it on top of your Deck. If Necrovalley is on the field, you can add the selected Field Spell Card to your hand instead.
- Show the card to your opponent.
- If Imperial Order & Necrovalley are both active, and An Owl of Luck is flipped, you add the card to your hand because Necrovalley is face-up on the field, even though its effect is negated.
- You select the card for this effect when the effect resolves, not when it activates.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Edison forum — sourced change requests get reviewed.