The A Song of Ice & Fire – Riders of Highgarden unit expansion introduces a new mounted unit to House Baratheon players. Though not as heavily armored as most cavalrymen, the Horsemen can unleash an attack as devastating as anything other factions can muster. A commander should be wary of engaging them in a protracted battle, but even then they excel in endurance and bravery.A Song of Ice & Fire - Baratheon Starter Set is required to play the expansion.