Chillspikes is an extremely strong skill for some niche builds, like infiltrator casters: [1.1.7.0] The Antlion - Rimetongue Blade Trapper, Cold Caster Infiltrator
Keep in mind that the skill has 5 projectiles, so the damage values of the skill can be multiplied by 5 to get a better approximation of how much damage it’s actually doing.