Successor Meeting Engagement

Two evenly matched phalanx-based armies met on the plains of Epirus. Pyrrhus was defending his realm from the incursion of Antigonus One-Eye (OK I know we're off on the timeline, but work with it!).
Antigonus made his left heavy with his Spartan hoplites flanked by some chariots, his agema, and Thracian mercenaries. His right was much weaker with elephants and another group of chariots. Pyrrhus deployed his elephants on his right, anchoring the flank of his Galatian band, the largest unit on the table. His left, on the other hand had both his agema and his Thessalian heavy cavalry.
Both armies advanced with their peltast engaging, first with missiles and then charging each other, the light troops exhibiting exceptional aggressiveness. However, Pyrrhus was to be betrayed by his heavy cavalry commander who, inexplicably, ordered the two heavy cavalry units to withdraw allowing Antigonus' chariots the opportunity to strike while the horses unshielded side was exposed.
Pyrrhus' elephants, on the other hand, held the flank against all comers, engaging Antigonus' Phoenician chariots, agema, and Thracian mercenaries for over an hour of very confused melee.
The battle was decided, in the end, by the heavy infantry. Antigonus' elephants and Athenian hoplites ground away Pyrrhus' 3rd phalanx while the Chaldean and Macedonian phalanxes of Antigonus crushed Pyrrhus' 1st phalanx and the Galatians were eventually destroyed by the Spartans.
Game was played using 15mm figures and home rules.