Complex sentence: After the journey, the player confronts Miraak at the summit of the realm, and, after an arduous battle, Hermaeus Mora impales Miraak, dissatisfied with his rebellious nature.
Split into simpler sentences: After the journey, the player confronts Miraak at the summit of the realm. After an arduous battle between the two "Dovahkiin", Hermaeus Mora intervenes, impaling Miraak, dissatisfied with his rebellious nature.