Complex sentence: It seems that Bardhylis opposed the deal with Amyntas II and Sirras and invaded Macedonia in 393 BC. Bardyllis used new warfare tactics never before used by any of the Illyrians and won a decisive battle against Amyntas III expelling him and ruling Macedonia through a puppet king.
Split into simpler sentences: It seems that Bardhylis opposed the deal with Amyntas II and Sirras and invaded Macedonia in 393 BC. Bardyllis used new warfare tactics never before used by any of the Illyrians. He won a decisive battle against Amyntas III, expelled him, and ruled Macedonia through a puppet king.