Whether artificially boosting its counters with cheap spells or utilizing equipment to buff the legendary creature, Vivi can easily net you an absurdly high manabase to unleash plenty of powerful spells, or even melt your Magic: The Gathering opponents down on its own
I think the +3/+3 as equipment is more valuable than a 3/3 creature in the long term, but if your deck wants to flicker artifacts why not both
Turn one (Drawing): Mox Diamond, plains, Soltari Priest (5 cards in hand) Turn two: Plains, Empyrial Armor, and the Priest attacks for 5 (14 life for your opponent, 4 cards in your hand) Turn three: Tithe for two plains and attack for 8 (6 life, 6 cards in hand) Turn four: Attack for 9 (extend hand, good game) 31
Elesh Norn, Mother of Machines This five-drop 4/7 legendary dork has vigilance, which is better in multiplayer since you can swing at the open player without opening yourself up to multiple counter attacks from everyone
Instant (7)