would wither be too weak?

I worry about it so much even though it's just the data of LV1.

we could see that:the duration and effect are very small

I don't think this data could give any BD enough help as a skill.
maybe it would grow much more when it reach to LV20,but few gems could have powerful growth except spell damage gems.

now I could only believe GGG's thought is normal so that this gem wouldn't be a joke

What if it refreshes the duration every time you apply a new stack? Gives you time to move and cast other spells in between and on longer fights the stacking could get pretty high. It's not like you can frontload a ton of chaos damage so if it doesn't refresh it seems fairly weak. I'm not a theory crafter but I was excited to see the new chaos spells, but it is pretty hard to see if they will be worth much in late game.

Since it's not a curse and you can't keep it up all the time via Blasphemy, I feel it's more or less required to put on a spell totem to drop and let you do your thing in fights.

I think it will be used mainly by melee chars on the lowest level with lowest level of CwDT. This way you get some free dmg if you focus on chaos.

But this slowing down effect with 0,5 sec time is a joke - if it was slowing down cast and attack speed it would still be viable for defense, but just movement ?? CwDT setup makes no sense - they are already around you. Manual casting ? Let's assume we have 100% cast speed increase (...) we get then 1/8 sec for casting and it lasts 1/2 sec, so manual casting would leave us with 1/4 for casting something else.... one incinerate shot ????

Only CoC setup seems viable as if we assume using it with Essence Drain it will still slows enemies down and give you nice dmg boost.... but it need to go with level up to similar levels as slower projectile... otherwise it will also be bullshit to lose one socket for that. Not really sure if this will work like that.

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Vipermagi написал:

With 0% Cast Speed and Duration, with the Gem at level 1, you can get 70% Inc Damage Taken out of it (as in, multiplicative with all your multipliers), assuming the 2s duration is for the Damage Taken debuff. Considering neither Contagion nor Essence Drain stack, it ought to be a good method of increasing Damage against bosses.

Each stack will tick down individually, I can tell you that much.

why is 70% inc damge taken?
we could apply 7 stacks during 2s with some special skills?

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Vipermagi написал:

You cast four times per second, and it lasts two seconds. 4 * 2 = 8.
Each stack adds 10% Increased Damage Taken, 8 * 10 = 80.

Sounds pretty obvious to me? Faster Casting, Spell Echo and Increased Duration all noticably improve the amount of stacks you can apply.

(I'm used to subtracting 1 from stacking debuffs from elsewhere, bad habit)

Damn... I must be sleepy already. With that CoC setup I just proposed, it might be really op even at level one jewel o_O

Let's say:

Barrage - CoC - Essence Drain - GMP - Wither (- LB / AB)

Holy hell. I was following along with the OP until Vipermagi (implicitly) pointed out the tiny cast time of 0.25 seconds. If there are no max stacks, Wither could actually be insanely OP as revealed so far for single-target in chaos builds.

You can get...
+25% ICS very easily from tree
+39% ICS from lv. 20 Faster Casting
+5% ICS from Alira C
170% cast speed multi from lv. 20 Spell Echo

64% increased duration from Increased Duration lv. 20

Assuming no crazy rounding breakpoint crap happens, that allows:

4 * (1 + 0.25 + 0.39 + 0.05) * (1.7) = 11.492 casts per second

and debuffs last for

2 * 1.64 = 3.28 seconds

Which means you can stack:

3.28 * 11.492 = 37.69 concurrent stacks

Also known as 370% increased Chaos damage taken.

wtf

Of course, thanks to The Meta, no one gives a crap about single-target, so hopefully this insanely OP skill will stay in the game with no nerfs. Fingers crossed for my PA archer.