Slap it on something youre scared of, watch as creatures trade and then do it all again
Anowon, the Ruin Thief Artist's Talent Belligerent Guest Bottomless Pool // Locker Room Bottomless Pool // Locker Room Contaminant Grafter Crossway Troublemakers Elegy Acolyte Frostcliff Siege Garruk's Uprising Glitch Interpreter Gnarlback Rhino Grazilaxx, Illithid Scholar Haliya, Ascendant Cadet Heroes in a Half Shell Invasion Tactics Jace, Cunning Castaway Kaito, Dancing Shadow Kastral, the Windcrested Keeper of Fables Killian's Confidence Loki, the Deceiver Massacre Girl, Known Killer Mu Yanling, Wind Rider Nelly Borca, Impulsive Accuser Ongoing Investigation Soul of the Harvest Spider-Man 2099, Miguel O'Hara Starscream, Power Hungry Striding Shotcaller Taii Wakeen, Perfect Shot The Destined Thief The Fantastic Four The Golden City of Orazca The Odd Acorn Gang The Raven's Warning Thopter Spy Network Tidus, Yuna's Guardian Vulture, Feathered Fiend Yarus, Roar of the Old Gods
I do gotta admit, though, revealing him to Harald Unites the Elves would be super-duper sweet
Unearth grants haste to the permanent that's returned to the battlefield (even if it's not a creature card)
The cards are exiled by a delayed trigger, so you could Stifle the trigger or simply end the turn with a card like Sundial of the Infinite in response
Decks With Identities There are plenty of more experienced analysts to break down how these mechanics and decks interact with the Lorcana card pool at large, so I'll just focus on my perspective: someone who knew a little about the game going in but was ultimately introduced to proper play through these decks