yugioh dd structure deck Yu-Gi-Oh! - D.D. Survivor (SDDE-EN014) - The Dark Emperor - Unlimited Edition If this card is Special Summoned to your field D/D Recruits - Structure Deck:

Enter the Battle Phase, attack your own Montage Dragon with your Yubel, dealing over 10,000 effect damage for victory

Mono-Red Aggro has a near-singular focus on dealing damage

8 Command Tower (Rainbow Foil Rare, Secret Lair Drop 806) $24.04 Towering Over The City This flawless, versatile land is an icon of the Commander format for its simple yet powerful ability to give one mana of any of your commander's colors

Because the card was banned solely due to its strength as a companion and it doesn't apply here, there's no reason to gate it as a Game Changer

Getting started on Yu-Gi-Oh

(The earliest example would be Gauntlet of Might, but this shows the design technology being used more readily.) Artifacts would go on to care about specific colors to remain narrow, a great tool in the box