The Summoner has no melee attack. Shoots bolts of magic that can kill nearly any enemy unit (except siege units) with one hit. However, they are also very effective long range Ballista killers, as they kill them in two hits.(It can be blocked). Kills unshielded guard towers in two hits. Summoners have infinite ammo, because their mana regenerates pretty quickly. You need full mana to shoot and each shot takes all your mana.