The four that depict just the two are Deadlock Trap, Traumatic Revelation, the Pride Secret Lair printing of Collective Voyage, and most recently Open the Way in Aftermath
As the deck does lock its user into only summoning "Archfiend" monsters form the Extra Deck, the two Tuner "Archfiend" monsters "Weiss, Lightsworn Archfiend" and "Shipping Archfiend" can be useful additions to the deck - enabling the summon of cards like "Chaos King Archfiend", "Chaos Archfiend", "Thought Ruler Archfiend" or the "Red Dragon Archfiend" monsters
Graded Population Report: Cut to the Chase [Foil] #129 Visualize the distrbution of grades in the chart
(If this card is your chosen companion, you may put it into your hand from outside the game for as a sorcery.) Abilities you activate that aren't mana abilities cost less to activate
That said, the whole enterprise has helped create a narrative that Wizards of the Coast values collectibility over playability and is pushing MTG towards an overload of special crossovers, product fatigue and high-price special releases