A 7/7 Eldrazi for 7 mana with seven keyword abilities is nice, and Sire of Seven Deaths can be played in Eldrazi decks, or keyword soup decks
Your table should be able to recognize the card quickly and play clean games without constant pauses
Naya Summons Between Rydia, Summoner of Mist, Garnet, Princess of Alexandria, and Yuna, Hope of Spira, there is a cool little Naya Summons theme in this set
While a number of the cards from this set have aged poorly (looking at you, Skyshroud Behemoth), a number were notable threats at that time but dont quite make the cut on this modern value-based list: Lin Sivvi, Defiant Hero was the engine for Rebel decks from this era, Saproling Burst slotted perfectly into Fires of Yavimaya decks (and also formed an instant-win combo with Pandemonium), and Rising Waters fueled a brutal control deck alongside the various Stax pieces and counterspells from sets of this era
Another fun aspect of MUNI is its use of historical street cars