Of course, size rarity itself isnt everything
The items in the deck, including namesake 002-169-pawpsicle, are especially effective with 002-149-hiram-flaversham-toymaker and 001-159-tamatoa-so-shiny The combination of early game ramp with powerful threats and versatile answers really ensures that Ruby Sapphire can resurface in any meta and post impressive results
Ichor Wellspring ain't no proper egg in that sense (it has no built-in sacrifice ability), but assuming your deck hangs out with an entourage like Braids, Arisen Nightmare or Daretti, Scrap Savant and you can reanimate artifacts, you can draw a lot of omelets with this one
So, unless you can find the deck for a reasonable price (quite a bit lower than the $150 that its currently selling for on TCGPlayer), its a pass
Due to that, Wizards said that the card will begin its life on both the Commander and Brawl ban lists