mtg edge of eternities commander decks World Shaper Precon Deck Upgrade Guide Artifact Rarity Wizards of The Coast Magic:

There's a once-per-game payoff with the Exhaust effect that will force your opponents to mill cards equal to the number of cards in their graveyard

A Standard all-star during its era, Vivien Reid is a midrange value engine that threatens to overwhelm opponents even if it never reaches its ultimate -8 ability

While it doesnt offer the same explosive pump spell kills as Glistener Elf or Blighted Agent because it has toxic rather than infect, it does do multiple good things

They give players creative control over crafting expansions

For elves, for a while, it definitely did

It should be noted that the madness card will resolve before your zombie does