It's a port of a Nintendo 3DS title that actually works well on Android
The name of the deck is because of the card Vivien on the Hunt that we use in a similar way as we did years ago with Birthing Pod, a card actually ban in Modern
If you fail and flip over a skull, you lose one of your four cards (either chosen randomly by an opponent or one you choose yourself, depending on where you found the skull)
Carmen does cost five, though, so the rest of your deck should be filled with equal amounts of recursion (Sevinnes Reclamation et al), ramp (Ancient Tomb, Sword of the Animist) and evasive bodies that can also grow tall (Voldaren Bloodcaster, Liberator, Urzas Battlethopter, Serra Ascendant)
Its appearances in the rest of the plane are rare and typically are a sign of some massive shift occurring in the spirit realm
Starter decks are a great way for new players to jump right into the world and gameplay of Lorcana, as they contain a good variety of cards that play well and off of each other