The Boar Spear is considered a Firelord item though it is not labeled as such. It can only be acquired by buying it for 100 MOS from MOS Market or through the Chest Market from other players. It requires Strength to equip. It can be enchanted many times using Weapon Enchant Scrolls to get more Aim and Power however this also increases the Strength needed to equip it. Be sure you can wield the next level Spear before you enchant the one you have. Enchanting is done at the Anvil.