commander 2018 booster box Magic the Gathering: Doctor Who Masters of Evil Deck MTG Sealed and opened singles of Commander Masters Collectable Product Commander Legends: Battle for Baldur's

Effects that interact with your library in any other way won't make you lose the game even if they ask you to interact with an empty library

There is no such thing as the best card or best deck in the game

Note that the version of this card from 2021 Tin of Ancient Battles is still less than $0.40, even though it saw a massive buyout on July 3 that caused the average number of copies per buyer to spike to 47.3

The limiting factor is how many targets you have: you have to choose a different, legal target for every card you discard, so you won't be able to discard 40 cards to kill all three opponents unless one of them has a board filled with dozens of Goblins or Bunnies or other valid targets.