How does Affinity work?
Affinity has been called the strongest aggressive deck in the history of Magic. It is essentially a series of unremarkable cards (0/2 creature, 2/2 creature, draw two cards) but at extremely low cost. Thanks to its artifact lands and the text “affinity for artifacts,” Affinity’s equivalent to Mulldrifter costs only one mana, its 2/2 creature is no mana at all. Affinity therefore has its operating mana loose to move around Cranial Plating onto its (again free) flyers, always with tons of artifacts in play. Affinity adds a fair number of powerhouses such as Master of Etherium, Atog, and the fairy godmother Arcbound Ravager to enhance or eat artifacts. This allows it to close in on massive amounts of damage very quickly, sometimes aided by Shrapnel Blast, at other times Fatal Frenzy.