(If both players use a Skill at the same time, the Turn player resolves their Skill first.) The Millennium Eye Skill is extremely powerful in the hands of an experienced Duelist
This is a bit of a double-edged sword, but I also don't think it can replace the feeling of using physical cards
Especially if you tapped something at the end of their turn, and then you do it again on your turn
Pick Specific Replacement: You can pick a specific alternative for the shopper to purchase if your first choice is out-of-stock
Example: Great Moth would normally need you to tribute Petit Moth on the 4th of your turns after Petit Moth has been equipped with Cocoon of Evolutions. With this rule, you can simple play it by Tributing two Monsters or by lowering its level to 6 (rule 5) and Tribute one Monster, by forgoing Great Moths attack this turn
You can organize with sets, folders, tags, and wishlists, scan cards to add them fast, and sync across devices, all ad-free