Complex sentence: Dignitaries from rival kingdoms descend on Camelot for peace talks, but what King Alined really wants is war and he'll do everything in his power to stir up hostilities, even if it means using magic.
Split into simpler sentences: Dignitaries from rival kingdoms descend on Camelot for peace talks, but what King Alined really wants is war. He'll do everything in his power to stir up hostilities, even if it means using magic.