golden castle stromberg yugioh card of DUOV-EN094 Ultra Rare 1st Edition Ne Mint / near mint condition trading card Yugioh Golden Castle of Stromberg

These are key to showing the scarcity of cards and are one of the reasons you're seeing such expensive prices

You can only use this effect of "Ashened for Eternity" once per turn

Slapping down a Maximum Belt [Prismatic Evolutions] can allow you to reach new heights, like OHKOing an opposing Mega Lucario ex

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Crossroads Village

Assuming the Creature doesn't die, a common play pattern could be to cast Emeritus of Woe, then next turn cast Demonic Tutor, search up a potent removal spell, kill a Creature via combat, and gain access to another copy of Demonic Tutor