Dim Vision

Required level 6Classic

What it does

curses a group of monsters, reducing their vision radius.

How Dim Vision works, in depthThe Necromancer's blinding curse shrinks a monster's awareness to its melee range. 7 seconds at level 1 and 45 at level 20 in Normal, halved in Nightmare and quartered in Hell; what it does and does not blind.

Items that give Dim Vision

3 items

Chargescast from the item until the charges run out

of Dim VisionSuffix	Dim Vision charges (level and number set by item level)	24

Chance to castfires on its own when you hit, are hit, kill …

GloomRuneword	15% Chance to cast level 3 Dim Vision when struck	47
Darksight HelmUnique · Basinet	6% Chance to cast level 3 Dim Vision when struck	38

Per level

before synergies, masteries and +skills from items

Level	Radius	Mana cost
1	2.67	9
2	3.33	9
3	4	9
4	4.67	9
5	5.33	9
6	6	9
7	6.67	9
8	7.33	9
9	8	9
10	8.67	9
11	9.33	9
12	10	9
13	10.67	9
14	11.33	9
15	12	9
16	12.67	9
17	13.33	9
18	14	9
19	14.67	9
20	15.33	9
21	16	9
22	16.67	9
23	17.33	9
24	18	9
25	18.67	9
26	19.33	9
27	20	9
28	20.67	9
29	21.33	9
30	22	9

Also raised by

items that add levels without naming it

Leads to

ConfuseLevel 18

Source: skills.txt row “Dim Vision” and skilldesc.txt of build 3.3.93847. Mana = (mana + lvlmana × (level − 1)) × 2^manashift ÷ 256; damage brackets at levels 2–8, 9–16, 17–22, 23–28, 29+ scaled by HitShift. · Report incorrect data

Unless stated otherwise, everything here is Diablo II: Resurrected build 3.3.93847, Reign of the Warlock.