Hack

Hack is an attack type and form of counter armor that typically melee units like swordsmen, spearmen and melee cavalry will deal in melee. Buildings and especially siege units like Siege Rams are very vulnerable to hack damage, along with most ranged units such as archers, support units and skirmishers.

Recent Changes (Alpha 15), have made Hack almost exclusively used by melee units and almost synonymous for hand-to-hand attack; No longer do Infantry Spearmen deal Pierce damage in melee combat.

Hellenes Spearmen typically have high hack resistance and armor but due to swordsman bonuses against them this won't help much.