Group of Explorers (TSD1-002) [Starter Deck: Trinity Cluster]

[Precision] While this card is revealed from your deck by an Exploration effect you control, if there is no card named "Group of Explorers" in your removed area, put this card into your removed area, then Exploration X, where X is the number of magic stones you control. W: Put this card from the field on top of its owner's deck.