Complex sentence: Crowley and Harris were meticulous in their work and Harris painted some cards as many as eight times; previous editions of the deck included two of her early drafts of The Magus card, each making use of markedly different style and symbols.
Split into simpler sentences: Crowley and Harris were meticulous in their work, and Harris painted some of the cards as many as eight times. Early editions of the deck included two of Harris' early drafts of The Magus card, each making use of markedly different style and symbols.