To highly advised not to use a bow against Akantor, as he's huge, and its nigh impossible to avoid his attacks. However, if in a group it could work, just make sure your not the focus of attention. Anyways, any bow with high thunder, or dragon element will do nicely. Here's a list of good bows for MHF2. Sonic Bow III Dragon Bow Solar Dragon Bow Mountain Akantor Bow (lol) Exterminator Bow Glorious Victory