Ice Comet is a skill located in the Mages Guild (which can be found in the Guild skill tree). Ice Comet is an ultimate. Ice Comet is a morph of Meteor
Ice Comet deals the following types of damage: Frost Damage. Which means that it gets buffed by the following blue champion point trees: Elemental Expert, Elf Born, Master at Arms, Spell Erosion, Thaumaturge. Also the following red champion point trees protect against this skill: Elemental Defender, Iron Clad, Thick Skinned.