That does not mean, as we have explained before, that the metagame is static, but if you invested in Regidrago when it first came out (like 4 or 5 years ago), you would have had in your position a tier 1 or 1.5 deck ever since
The demand of Unpeeled is high for a collector, but the supply is very low
But having Shock, Raise Dead, Rampant Growth, or Preordain stapled to a Scry 2 when I am looking to sculpt my draws later offers more card advantage than most players would have known what to do with in 1993
Even more Pokemon appear as illustration rare cards with amazing artwork - discover them all in the Pokemon TCG: Scarlet & Violet expansion
With that, expect the price of Demilich to rise when more cheap and powerful spells come into older formats