I haven't tried the Horror/Terror toggle yet, not even sure exactly how it works. I think I'd rather use a Winter spell and Freeze them, for combo damage.
What's your first 16 ability points going to be in? A 31 point spec isn't too useful during the Haven raid or Into the Abyss. Your first 16 are what determine your spec for most of the main quest. Unless you are using CE, in which case I don't care any more.
For the Haven assault my points will be in Barrier, Dispel, Wall of Fire, Energy Barrage, Chain Lightning, Fade Step. Wall of Fire + upgraded Chain Lightning is brilliant for Haven.
By the time I do the Adamant mission, I plan to use all those in addition to Walking Bomb and either Ice Mine or Winter's Grasp. So I should be okay.
If you notice I did not toggle the reduced XP for enemies option in the Trials. Couple that with the fact that I am a completionist freak and I have all 3 DLCs, I expect that should be able to reach level cap without a huge amount of difficulty.
Cheat Engine ? Bah, that's for lame people.
Well try it. In my opinion blizzard was terrible still even with frost belt. Not enough damage quickly enough but I was soloing. Horror seemed to be more useful with that despair upgrade I did notice that enemies were standing around doing nothing when I kept doing damage to them. And because I found horror to be more useful now I never put those precious ability points into firewall and upgrade and took flame array (you don't have to aim flame array you just dump it at a mob of enemies or on the path between you and the enemies and they're dead quicker). Other than that always use an enhanced walking bomb ring not the life drain if you necro. And enhanced storm or inferno belt.
True, Blizzard does not do impressive damage. But it does do damage, it freezes, it chills enemies in a large area of effect and it procs Ice Armor. It does all this for just 40 mana which is just 5 more than Ice Mine. An extra 5 mana is no big deal.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------
On a related matter, who are the ideal companions to tackle Nightmare + Trials ? Suggestions would be welcome.