Firstly, he has two abilities that are very different in usage and application
The best boosters to open just for fun each Innistrad: Crimson Vow Set Booster contains 12 Magic cards, 1 Art Card, and 1 token, ad card, Helper card, or special card from Magic's history (a card from "The List"), with a combination of 14 Rares and/or Mythic Rares, 27 Uncommons, 38 Commons, and 1 Land card in every pack
Selvala, Heart of the Wilds Selvala, Heart of the Wilds activated ability is a good source of both ramp and mana fixing, even on its own
We've all known Collector's Boosters were outrageously expensive for the longest time, and this change from twelve packs in a box to four just pushes it further into the realm of being for scalpers and MTG finance-types hoping to flip a profit on them in ten years
Meanwhile Pernicious Deeds and other such sweepers can control the game or clear a path, and your destruction awaits
It could see use as a combo into Beast Wolfsbane