I couldn't find anything in the rules about this, so I thought I would pose the question here. I was playing a game and my opponent used Wonder Tag, they went into the deck pulled a Guzma, put it on the mat, and then started shuffling their deck. They then pulled a Cynthia, put the Guzma back, shuffled their deck, and then played Cynthia as normal. So really two questions: 1. Was this legal since you are able to search your deck for what you want? My gut says yes, but I don't want to get taken advantage of next time if not. 2. When is a card "played" so that an action can't be taken back? For example, holding a choice band slipped under a card, not letting go, thinking better of it and putting it back in your hand, versus letting go and then saying that wasn't what you meant to do. Or announcing that you are attaching energy to Lycanroc GX, but putting it on Zoroark GX, letting go, then correcting to what you said.