Ice is a niche use runeword but it was modeled after Hands of Justice and either of them weren’t well thought out. HoJ lacks %Fire that Ice has for %Cold(despite both runewords having two high runes and HoJ has 3), ctc attributes are hot garbage save for Ice’s Frost Nova on striking(giving it nice AoE which doesn’t make much sense for a Missile runeword since Freezing Arrow yields the same effect. If it were a 4 socket weapon runeword and melee could use it, Frost Nova would be godly from the AoE).
Both have -20% Resistance, which honestly is too low for either runeword(thinking 30% at minimum given that Crescent Moon gives -35% with better procs for far less cost) while keeping %Skill at 20-30%(varies). Both should get ctc Lower Resist on striking(that would amplify Elemental big time). %ED on Ice should also match HoJ(280-330) or be somewhere around 250-300% ED from its current 140-210%.
Otherwise… Ice is hot, unmitigated garbage for the cost.