I've done very limited testing with it and while it could be greatly improved upon, here's what I've seen so far. Times I've taken are by stopwatch on my phone, so there is a slight delay between start/stop times, so I've posted the average I found when only casting 914 1 time at each target (multiple casts will build the storm faster, but I did not do multiple casts on any targets).
No EL:A ranks:
Roughly 20.5 seconds from the initial cast to the first damage cycle
Roughly 9 seconds between damage cycles
30 EL:A ranks:
Roughly 19 seconds from the initial cast to the first damage cycle
Roughly 8.2 seconds between damage cycles
That's all I've got without access to the test server.
With all that in mind, the spell is just brutally too slow to be useful against anything, even group hunting...20 seconds or so waiting for the initial damage cycle and the rest of the group will have the target dead by then. Unless you're up against a creature that only swings (no maneuvers or spells), you'd be crazy to stand there for 20ish seconds waiting for the spell's first damage cycle.
I thought maybe it would be kind of fun with my younger wizard to maybe team up 914 and 917, but by the time 914's first damage cycle could start, 917 will have killed the creature or already have completed all 6 crit cycles, all while waiting for 914 to even get off its first one.
The build up duration needs to be greatly reduced or the spell needs to be worked on to shift it more towards how 917 functions and working with SMRv2.
Clearly we (players) have no idea how much time is reduced with EL:A ranks for 914, but just a guess, from 0 ranks to 30 ranks EL:A, it looks like roughly 1.5 seconds are shaved off. I'm thinking roughly 7.5% reduction of time at 30 ranks. So that means the time reduction could be based off a seed 1 since 28 ranks = 7 or maybe 7% and 2 more ranks (for 30 EL:A) would push the reduction to 7.375%.
I'm going with seed 1 summation. So the reduced times should look something like this, if the initial base time between cast and first damage cycle is 20.5 seconds:
Seed 1 | |||||||||||||||||||||
Ranks EL:A | 1 | 3 | 6 | 10 | 15 | 21 | 28 | 36 | 45 | 55 | 66 | 78 | 91 | 105 | 120 | 136 | 153 | 171 | 190 | 210 | 231 |
Duration reduction % | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 |
Time for storm to build | 20.5 | 20.09 | 19.885 | 19.68 | 19.475 | 19.27 | 19.065 | 18.86 | 18.655 | 18.45 | 18.245 | 18.04 | 17.835 | 17.63 | 17.425 | 17.22 | 17.015 | 16.81 | 16.605 | 16.4 | 16.195 |
I don't know for sure if the duration between damage cycles is also reduced, it does not mention that they are on the gswiki. But it does mention that the storm builds faster based on EL:A ranks, but the exact formula is unknown. All I know is that the damage cycles appeared to trigger slightly faster with 30 ranks EL:A based on timing them.
If the base duration with 0 EL:A ranks is 20 seconds, then someone with 30 EL:A ranks would have roughly a 7.4% duration reduction for the storm to build and possible time reduction between damage cycles.
30 EL:A means about 19 seconds for the storm to build until first damage cycle and about 8.3 seconds between damage cycles. This closely matches what I was seeing, but I can't say for sure that this is accurate with only two data points (0 EL:A & 30 EL:A) to go off of.
Yes, I'm bored at work....
So if the number above are good, that means someone with near maxed EL:A (190 ranks) would have a 19% time reduction for the storm to build and on time between damage cycles.
Initial cast to 1st damage cycle would be roughly 16.6 seconds (if base is 20.5 seconds)
Time between damage cycles would be roughly 7.3 seconds (if base is 9 seconds)
That seems....well, really slow still. Hopefully they can drastically reduce the build up time and duration between cycles for this spell, triple or quadruple the time reduction?
-Drumpel