Specifically referring to the Skull Archfiend series, trying to make it viable whilst also additionally filling out its ranks (Summoned Skull of other abilities/types)
Its a 6/6 for 6, and it lets you find two other cards from your decknot named Burning-Rune Demonand put one, which and opponent chooses, into your hand and the other in your graveyard
When you attack, you compare your Atk value to the opponents Atk or Def value, whichever is relevant
A 2-color Tamer still counts as 1 Tamer
Untapped dual lands are the best kind, since they can immediately make an impact
While it hasnt shone after that, it was still a dominant force back in the day, and from time to time it appears in Pioneer events where the only thing stopping it from being a decent deck is its unfavorable match against arguably the best deck in the format, Izzet Phoenix