The idea is to play Archfiend and then play Metamorphic Alteration on an opponent's creature to turn it into an Archfiend of the Dross
When you do, tap the copied creature and it doesnt untap during its controllers untap step for as long as you control this creature
in 20% of packs you'll also get a Traditional Foil Land card WELCOME TO THE GATHERING - Magic: The Gathering is a collectible card game that weaves deep strategy, gorgeous art, fantastical stories, and a thriving fan community all together into a card game experience like no other Contents: 1 Sealed Play Booster Pack 15 Randomized Cards Limit 12 per customer
If cards become worthless, many fewer packs will be opened
Getting viable attackers on your board is also a great boon if not to be your first choice win condition, then to apply pressure to opposing value engines
We can do some prompt engineering thats similar to what we did with the art