Complex sentence: For example, the amulet is an object with natural magical properties, whereas a talisman must be charged with magical powers by a creator; it is this act of consecration or "charging" that gives the talisman its alleged magical powers.
Split into simpler sentences: For example, the amulet is an object with natural magical properties, as opposed to a talisman which must be charged with magical powers by a creator. It is this act of consecration or "charging" that gives the talisman its alleged magical powers.