Imagine having Korvold or Ygra in play when you do it
Some involve an imbalanced resource conversion, like [casthaven]Ancient Tomb[/casthaven] (two life is absolutely worth an extra mana), others rely on a resource strong enough to easily build a deck around, such as [casthaven]Tolarian Academy[/casthaven] and [casthaven]Mishras Workshop[/casthaven]
Summon: Primal Garuda, for instance, is a clunky removal spell with tremendous upside
The introduction of role tokens is cool, and there might be a few more rat tokens running around than you're used to, but fan favorites like faeries and food are great returning themes in Wilds of Eldraine
Personally, I feel like these are pretty risky specs
That does leave the door open for almost as good NegateNegate, Swan SongSwan Song and DissipateDissipate