Mabye i didnt got it A1zen but under ice dmg i dont understand elemental dmg like earth,water,fire,air,magic. And intelligent things give Elemntaldmg+15 and no ice dmg.
So if u wanna do high ice dmg use shutas,icecap ice stones or if u got some scion prayer stones.But the basic of an archer is elemntal dmg like A1zen already told. Archer is one of the only class what can use elemental dmg very succesfull cause it got the skill Helpless what as we know reduce elemntal resistance rapidly. and if u got intelligent things u gonna some high dmg even if some1 got 80 resi. Just vs kngihts swashes and moons especially ele dmg isnt very succesfull (80%ele resi) so icelight and poison are the fastest way to get them down. Ty up if helped