The Elephant Archer combines the hit points of the War Elephant and the attack strength and range of the Composite Bowman. Other mounted archery units include the Chariot Archer, Horse Archer, and Heavy Horse Archer.
Researching Alchemy increases attack strength. Ballistics increases accuracy. Leather Armor, Scale Armor, and Chain Mail increase armor. Woodworking, Artisanship, and Craftsmanship increase range.