It has a very cool ability that is very much unique to an Un set
Playing some stax effects can make some eyes roll, but at least youre going to be going full speed and youll be able to end the game when you pop Rumbling Crescendo or run your Rising Waters
That means it sticks around and you can give it a Sword of Fire and Ice or block a powerful dork that swings without trample to prevent it from going to your dome

Abrupt Decay Absolute Virtue Akroma, Angel of Fury Allosaurus Shepherd Altered Ego Autumn's Veil Balustrade Wurm Banefire Benevolent Geist Bind Blurred Mongoose Boseiju, Who Shelters All Bound // Determined Bound // Determined Brown Ouphe Carnage Tyrant Caught Red-Handed Cavern of Souls Chandra, Awakened Inferno Chimil, the Inner Sun Chromium, the Mutable Combust Commence the Endgame Control Win Condition (playtest) Counterflux Cragplate Baloth Cunning Nightbonder Curator of Destinies Delighted Halfling Demonfire Destiny Spinner Domri, Anarch of Bolas Dovin's Veto Dovin's Veto Dragonlord Dromoka Dragonlord's Prerogative Eject Emrakul, the Aeons Torn Exquisite Firecraft Frenzied Baloth Fry Gaea's Herald Gaea's Revenge Glen Elendra's Answer Goldbug, Scrappy Scout Great Sable Stag Heated Debate Hexing Squelcher Hit-Monkey Howlpack Piper Hullbreaker Horror Hunter's Mark Inescapable Blaze Inevitable Defeat Inferno of the Star Mounts Insist Isao, Enlightened Bushi Kavu Chameleon Koma, Cosmos Serpent Koma, Cosmos Serpent Koma, World-Eater Kraza, the Swarm as One Last March of the Ents Last Word Leyline of Lifeforce Lier, Disciple of the Drowned Lightning Mare Lithomantic Barrage Long Goodbye Loxodon Smiter Magic Missile Mistcutter Hydra

You can see here we're dealing with a creature that is both a dragon and a skeleton
Magic: The Gathering Secret Lair drops with all-new Legendary creatures or cards are usually very well received, and with Marvel's popularity it's no wonder that these kits will likely be sold out pretty fast