yugioh parshath structure deck The Sanctum of Price & Card Details — Deck: Wave of Light inflict the difference as Battle Damage to your opponents Life Points YuGiOh Wave of Light Structure

If this Mega Hyper Rare was a little more detailed, it could probably be worth even more, but $500 is nothing to sneeze at

Chart shows the price of Professor's Letter [Reverse Holo] #146 at the end of each month going back as long as we have tracked the item.

I know this was the case during the EX era when Devir was printing cards, but not sure for the SwSh era

At the heart of this beast was Cori-Steel Cutter, a two-mana artifact from Tarkir: Dragonstorm

It was awarded during the 1999 Yu-Gi-Oh

Flashback costs can range from mana in alternate colors to the card's casting cost to paying life, tapping or sacrificing creatures, or sacrificing other permanents