There's an argument to be made that using Vivi as intended can result in long, drawn-out games of Commander where your opponents can get easily frustrated, but the strength of Vivi lies in his versatility
Once it resolves, it will remain in effect until the game ends, Ride the Shoopuf's leaves the battlefield, or some subsequent effect changes its characteristics, whichever comes first
(6/6/2025) In some cases involving linked abilities, an ability requires information about "the exiled card." When this happens, the ability gets multiple answers
The first is the Buy-A-Box promo
The TCG that feels the most similar to Lorcana is Magic: The Gathering, but whereas Magic features two players as rival wizards summoning creatures and casting spells in order to defeat each other in battle, Lorcana is much more family-friendly where no one gets hurt
The effect might look like a benefit at first glance, but by the time you use this, the opponent's ink should already be fully ramped