Many dragon-based decks are already able to amass a punishing engine with the likes of Sarkhans Unsealing, Dragon Tempest, and Scourge of Valkas
Replicating Ring
All of Sam's cards deal with either Food, which is one of his greatest loves, or returning creatures from the graveyard, which represents his dedication to his friends and family in the series
More specifically, not all Dredge decks are the same, so your experience with other versions of the deck from Legacy or Vintage, while valuable, can lead you to make bad conclusions if not properly understood in context
When you limit players to just one noncreature spell per turn, it throws a wrench in the plans of decks like Storm, Living End, or even niche decks like Jeskai Ascendancy