I’m not completely sold on Temporal Shield, though it does indeed sound intriguing. I absolutely cannot wait to test it when the beta arrives. We need to know more, because the wording is unclear, but as I read it, this provides you with a damage shield that lasts 4 seconds. It’s not stated how much incoming damage this will absorb, and indeed, the tooltip doesn’t actually say any damage will be absorbed. Any damage taken during the 4 seconds the shield is active will then be refunded to us over the next 6 seconds. My best-case scenario reading of this is that this spell will protect us from some or all incoming damage for 4 seconds, then heal us for 6 more seconds. Somehow I have trouble believing that’s the reality, though.
The Blazing Speed change is interesting. It’ll grant us a lightning-quick 150% speed increase instead of 50%, but it’ll only last a second and a half. Plus, it’ll be triggerable instead of a proc, but only after taking a spell or melee hit that does 2% of our max health or more, it’s off the global cooldown, and it can be activated even during a spellcast. It’ll be a powerful escape maneuver to use when Blink isn’t available or just when we need to move a long way in a short amount of time. I’m not sure 1.5 seconds is quite long enough, but we also don’t know how often the ability will be available (is there an internal cooldown? How long after the damage is taken can we still activate the ability?).
The middle tiers
Tier 3 is relatively untouched, though Ring of Frost seems to have traded its 3-second “coalesce” time for a 1.5-second cast time. Tier 4, though, has some changes. Greater Invisibility is much improved, retaining all its original stealthy goodness, but adding in a 90% damage reduction while active and for 3 seconds after being broken. That’s a very powerful damage mitigation and avoidance ability right there, guys. Cauterize will no longer require a heal to prevent it from eventually killing you, as its life-saving effect will bring you to 50% health and then only burn you for 40% over the next 6 seconds. And Cold Snap is also being given a healing component; when activated, it restores 20% of your max health in addition to finishing the cooldown on Ice Block, Frost Nova, and Cone of Cold. … Because frost mages were just too easy to kill, I think we can all agree.
We should probably discuss tier 5 a little bit, too. Living Bomb looks pretty much the same as it did before, but the other two bomb spells have evolved a bit. Frost Bomb still does essentially the same thing it did in previous iterations of this talent calculator, placing a ticking frost bomb on your target that explodes after 6 seconds, doing damage to nearby targets and slowing them, but now the countdown on that bomb and the cooldown of the spell are both reduced by haste. Arcane Bomb has seen a full overhaul.