Greetings
Newbie Mage here, and as I would like to try my hands at AoE Grinding, I do have a question in regards to Permafrost. Most AoE builds I see have 3 points in both Permafrost AND Imp. Blizzard. Is that really needed? Imp. Blizzard already adds a 65% slow to Blizzard, and Permafrost only upgrades that by a mere 10% (up to 75%), which seems like a rather small amount in comparison. I can see the merits of putting one point into Permafrost (for the increased duration in case of a resist), but the whole 3 points seems like an overkill, no? At least while leveling up, those points could be put to good use elsewhere.
Any experience Mage could give me some insight if AoEing is doable with 1 (or no) points in Permafrost? That would be greatly appreciated!
Thanks in advance
Layna