yugioh fiend support cards Archfiend Strategy - Burst Protocol

This activated ability requires a red mana, making it so decks must have both black and red in their color identity to use Hidetsugu

Its widely considered the most expensive Yu-Gi-Oh

Servant of the Conduit, Aether Hub, Woodweaver's Puzzleknot, and Whirler Virtuoso were a key part of the Standard decks built around Aetherworks Marvel that would eventually be banned out of the format, with the first two cards and Attune with Aether providing incredible fixing for the multicolor deck

(I know how pretentious that sounds.) It also has my first Pristine 10 WOTC 1st edition Holo in it (the Zapdos), which I picked up from a friend who graded hundreds of WOTC Holos to get it

Then, again, it wouldn't be hidden from Stonjourner

GU, Tap: Double the number of each kind of counter on up to two target creatures and/or artifacts you control