You need a way to deal damage to Spiteful Sliver so that it can kill your opponent with infinite damage
For example, Naya Hexproof is becoming quite popular, so cards such as Celestial Flare might be good to consider in the sideboard, and Golgari and Junk Dredge is showing some play in tournaments as well, meaning Scavenging Ooze could also be another adaptation in the future
Formats Legalstandard Legalfuture Legalhistoric Legaltimeless Legalgladiator Legalpioneer Legalmodern Legallegacy Not Legalpauper Legalvintage Legalpenny Legalcommander Legaloathbreaker Legalstandardbrawl Legalbrawl Legalalchemy Not Legalpaupercommander Legalduel Not Legaloldschool Not Legalpremodern Not Legalpredh Legaltlr
It leads to good games of magic and interesting construction choices
A bunch of the cards got art, the rules got updated, and walls could no longer attack
With the number of tokens this deck can produce, Craterhoof can turn a harmless-looking board into instant death