Complex sentence: To avoid assassination attempts by the nobles of Azure City, he pretended to be senile and easily swayed (especially by his cat, Mr. Scruffy) to make them feel that all his policies were due to other nobles' manipulations.
Split into simpler sentences: To avoid assassination attempts by the nobles of Azure City, he pretended to be senile and easily swayed, especially by his cat, Mr. Scruffy. This was to make them feel that all his policies were due to other nobles' manipulations.