precious cards from beyond yugioh | Yu-Gi-Oh! Wiki add 1 Pendulum Monster from your Deck to your hand Deck Profile: Precious Cards From

Alongside Lisia, peering over shoulder, is Altaria her left-hand Dragon-type that embodies that spirit of the protagonists character

1 deck box capable of holding 100 sleeved cards

Its a very confusing concept that logically only works because the people who design the game says that is how it works so I would not question it that much

In the graveyard, it is the Metamorph card in its original shape, but since leave-the-battlefield triggers go off from the battlefield, and Phyrexian Metamorph was a Messenger with no counters on it, Undying will trigger

You have a fair amount of protection against removal and loads of evasion anyway and so the Idol isn't fulfilling any role better than your staples