It must be 1000 because of better times I'm getting vs ghom than from bears. If skill was 500% it would be no match.
Btw, plague of bats, what kind of dps is possible with this skill, during long encounter. If I channel this for let's say 10s, do we get 578% per second?
Cloud of Bats achieves max damage on the 9th tick. Its scaling is 30/aps. So let´s take for example a Ceremonial Knife with a Witching Hour and Inna/Lacuni = 1.40 aps * 1.18 = 1.652 aps
floor (30 frames / 1.652 aps) = 18 frames per tick
I´m not sure when the initial tick occurs, but each subsequent will happen after 18 frames, so you get 60/18 = 3.33 ticks per second while channeling the skill.
As I said in my previous post, each tick deals half of the tooltip damage, the second deals 20% more than that and subsequently get boosted by 10% each tick (first one is base - 250%), afterwards *1.2, *1.3, *1.4 etc. up to *2.0 so
Back to our example at 1.652 aps. The 9 ticks after the initial will take 9*18 = 162 frames = 2.7 seconds. After that you´ll be dealing 500% * 60/18 = 1667% weapon damage per second.
That is quite amazing, to say the least. Too good to be true, actually. Again it sucks soo much that I get blocked from PTR, otherwise I´d test to make sure.
Now Plague Bats. At 1.00 aps, you do 270% per stack over 5 seconds = 54% weapon damage per second. Channeling this, getting five stacks, you´d do 270% damage per second. At 1.652 aps, the 10 tick duration (5 sec) would change to 6 ticks (3 sec), so you´d be doing 270 / 3 * 5 = 450% damage per second while channeling with 5 stacks.
Now take the same situation, just with 578% instead of 270% and you get 963.33% damage per second at 1.652 aps while channeling.
EDIT: would anyone be willing to make a simple Cloud of Bats PTR test as I can´t?
Get a white weapon with the lowest damage and damage range you can get. Take off all +min and +max damage slots you have and only equip one +minimum damage jewelry piece so that if you add the +min to the min value of the white weapon, you get min>max (the game will use min=max). This way you only get one damage value.
Write down the new min weapon damage and your intelligence value. Now use the skill and tell me what number you see ticking after the 9th tick.