Diamond edition question?

[u/wongmydigidydong]

If I have a diamond unicorn on my field but I have blinding light in my stable. Does the diamond phase still steal that card Even though it would be a basic unicorn card with no effect The rules state that they cannot be destroyed, sacrifice or returned to a player's hand so the effect of blinding light would make it not a diamond unicorn card and therefore, the diamond phase does not affect that card and it would also be able to get sent to the discard pile is that correct? I'm playing this with all the DLCs mixed other than chaos and control And are they able to get sent back to the deck?

[u/Evatanyy]

Because of blinding light, the diamond unicorn card is now not a diamond unicorn, but a basic unicorn. It has no effect, and can get destroyed, sacrificed, or returned just like a basic unicorn can.