So, the basic idea is that we play Archfiend, wait until our opponent plays a creature, and play Metamorphic Alteration on it to turn it into an Archfiend of the Dross
Midnight Oil: In the tradition of Demonic Pact
This location, The Queen's Castle, will help ensure that does not happen, as players can draw cards for each character they have there, every turn
That said, their might means that once theyre out, theyre often there for good - making it difficult for your opponents to claw back victory once your best steel cards are unleashed
This, most commonly, is seen in sacrifice shells when it does show up in constructed to try and make the Citadel as consistent as possible
As one of whites most iconic creature types, Ive also played with them a lot in the Commander format, both in decks based around angels and in the 99 of other decks for support