The Savage Worlds Edges incorporate a number of traditional D&D class abilities (a ranger might have Woodsman, a rogue Thief, a druid could have Beast Master, a cleric would likely have Holy Warrior, a paladin would take Champion, etc). Arcane Background isn't really any different in that respect - it covers wizards, clerics and psions, as well as artificers, mad scientists, and even low-powered superheroes (you'd want the Super Powers Companion for the more powerful superheroes).
But with the appropriate trappings it could instead represent cybernetics, genetic engineering, lycanthropy, unusual racial abilities, extraordinary talent or training, or something else entirely. You might for example take Arcane Background (Super Powers) for a highly skilled warrior, giving him powers like Deflection, Smite and Quickness, each with trappings describing specialised combat maneuvers, to create a Wheel of Time style "blademaster". The character wouldn't actually have any "arcane" abilities, but he'd use exactly the same mechanics.
Arcane Background is really just a way of representing limited-use abilities. The rest is just trappings.
But with the appropriate trappings it could instead represent cybernetics, genetic engineering, lycanthropy, unusual racial abilities, extraordinary talent or training, or something else entirely. You might for example take Arcane Background (Super Powers) for a highly skilled warrior, giving him powers like Deflection, Smite and Quickness, each with trappings describing specialised combat maneuvers, to create a Wheel of Time style "blademaster". The character wouldn't actually have any "arcane" abilities, but he'd use exactly the same mechanics.
Arcane Background is really just a way of representing limited-use abilities. The rest is just trappings.