Oh, and it can draw you a bunch when it enters the battlefield
Usually its the mid-range cards that tend to sell the best, as theyre more affordable but that hasnt stopped folks capitalizing on the excellent reprints of Force of Will and Vampiric Tutor in the Secrets of Strixhaven Mystical Archive bonus sheet, or quelled the temptation of casting Ancestral Recall that Emeritus of Ideation offers
First strike and haste make it easy to ensure at least one trigger
The token doesn't copy whether Stormsplitter is tapped or untapped, whether it has any counters on it or Auras and Equipment attached to it, or any non-copy effects that have changed its power, toughness, types, color, and so on
Im most exciting about a card that benefits from a mill strategy but doesnt demand one: Drown in the Loch, a flexible and powerful spell, assuming you can guarantee your opponent has five or more cards in their graveyard