There are only so many key pieces to make Xander super impactful, and those cards have been known for quite some time now - cards like Bruvac, the Grandiloquent, Waste Not, or Conjurers Closet to name a few

* Only 1 filler is known to have two Triangular Holofoil Stamps: - White with Two Triangular Holofoil Stamps Filler Card * Only 12 fillers are known to have Gold or Yellow coloring: - Black Border Gold Foil with 3 QR Codes Filler Card - Black Border Yellow with 3 QR Codes Filler Card - Black Border Gold Foil Discard Filler Card - Black Border Gold Foil Discard with Triangular Holofoil Stamp Filler Card - Black Border Yellow Discard Filler Card - Black Border Yellow Discard / Black Border Yellow Discard Filler Card - Gold Foil Discard Filler Card - Gold Foil Discard with Triangular Holofoil Stamp Filler Card - Gold Foil Discard / Dividers Filler Card - Yellow Discard Filler Card - Yellow Discard with Triangular Holofoil Stamp Filler Card - Yellow Discard / Dividers Filler Card * The oldest filler is probably the Alternate Fourth Edition Filler Card Version 1, while we don't have a precised month, it has been verified that The Alternate Fourth Edition cards have been printed after November 20, 1995 by the United States Playing Card Corporation in Cincinnati in a first attempt to produce Magic cards on US soil

Other ways to use the big mana value of split cards include Starfield of Nyx, Zur, Eternal Schemer, and Metallurgic Summonings
Chart shows the price of Cutiefly #78 at the end of each month going back as long as we have tracked the item.
That gap between the idea in your head and the thing in your hands is real, and it's frustrating enough to make most people give up