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In fact, you probably solve this entire mystery by going to over a WOTC forum and asking them why they're "using the old Pokmon holofoil" they'll stumble over themselves to "Um, actually" you and you'll get your answer

10 Kraum, Ludevic's Opus & Tevesh Szat, Doom Of Fools Draw Cards To Fuel Combos Kraum, Ludevics Opus, and Tevesh Szat, Doom of Fools have a higher combined mana cost than the typical cEDH commanders, but its hard to deny how well they still work

Its great in decks that care about looting often

in cEDH, Blood Pet is often found in Krrik, Son of Yawgmoth builds as a way to net an extra mana for 2 life, but also sees a lot of play in Inalla, Archmage Ritualist and Ad Nauseam lines to rush out these expensive spells or aid in comboing off with other cards to win the game

Selling locally, you may be able to find someone who is willing to pay TCGplayer or eBay low prices and save yourself the fees