It has a grindy card advantage engine, an aggressive curve of creatures, and still has an I win button which forces opponents to play around it
Since about one-fifth of the deck meets those criteria, you'll get a card to replace most of the ones you want to play anyway
With only four options to choose from, and all but one of them costing three mana, we're not really seeing a slam dunk here outside of Korlessa, Scale SingerKorlessa, Scale Singer
Because Vivi's mana ability can only be activated on your turn, you can use it to cast big spells, and leave your lands open for counterspells or protection spells to keep Vivi alive until your next turn
With this being said, Starfield ShepherdStarfield Shepherd is the best warp card, although I ranked it 10 th in my original article, and it's all because of the flexibility I ill-judged the first time