Even so, this effect is a very strong game closer, and I would say with the pass of time and new cards being printed it is inevitable that we will get more ways of accelerating/cheating this into play and winning on the spot
Still, this deck doesnt seem like the kind to have nothing on the field, and at the minimum it is a 4/4 with trample for 4 mana
C+ Undercity Plague Its so expensive, but once it connects once things can spiral out of control fast
Moving counters with Innkeeper's Talent, Terrasymbiosis, or Branching Evolution can add counters faster than vendors give out swag at MagicCon
Many have asked for this to be banned in Commander since entire decks are built around breaking it in their decks with a storm count win like Tendrils of Agony after dropping all of those zero cost artifacts or Dark Ritual effects
This Sheoldred is one of those generally good cards, but it can work especially well in decks that fill your own deck with cards, giving you lots of creatures to choose from for reanimation