sheoldred mtg card Sheoldred, the Apocalypse – Proxy Activate only as a sorcery and only if an opponent has eight or more cards in their graveyard Archfiend or Sheoldred - by

With great card draw and aggro both in the command zone, and enough little creatures to get said commander out early with Convoke, it's fairly easy to start some life totals rapidly declining while also drawing significant portions of your deck to keep the whole thing going through a possible board wipe

WotC confirmed that the name exhaust was selected to be pretty generic (turbo was originally a consideration)

Its worth noting that in situations where you were only trying to double a single counter anyways, Scales is strictly cheaper than Doubling Season so it should find an auto-home in those pre-existing EDH decks that are already abusing counters

Either way, it's powerful