Have a look at the different in EV just based on the rares we know so far: If you squint, thats a potentially whopping 50%+ increase in the EV being added by rares in this set, assuming a roughly equivalent value for the remaining rares, including likely bulk rares
Note that he can target himself to draw two cards and leave a blinkable body behind
Look for synergy with Anointed Procession or Sevinne's Reclamation for extra spirit action and graveyard recursion
Thats especially powerful when you combine it with something like Maskwood Nexus, which makes all creatures you control, and creature cards you own that arent on the battlefield, all creature types
All of that, and they fit easily in a deck box
When all your options are low powered cards you take the one that does the thing you most want ot need and often that will result in this heap of cack getting learned