this skill is supose to do Increases attack strength and maximum attack range while using a bow.
but in this server, it says spear?
It's only a clientside "typo", not sure how that happened.
skill_begin skill_name=[s_archery] skill_id=431 level=1 operate_type=P magic_level=78 effect={{p_attack_range;{bow};100;diff};{p_physical_attack;{bow};200;diff}}
As you can see, server-side It gives +100 range, +200Patk while using bow.
Thanks for report, we'll push a fix for typo.