Willowisp

Willowisps are Undead.

These floating, semi-ethereal monsters are widely dreaded for their potent lightning bolt attack. Willowisps are transparent, and can be hard to see when they move between attacks. Though they have a mana draining melee attack, it's best to take them on at close range, since their lightning bolts do much more damage and are not used in close.

Willowisps were extremely dangerous in v1.10, since an error in the programming made their lightning bolts hit many times at once.

Chain Lightning listed damage in Hell is 5-190. There is a bug where they deal their Melee Attack as part of their ranged attack, which is 42-108 and physical damage. Another hit is from a new missile bonus, and based on Mlvl 83 for Act 5 Hell Wisps, it's 166-169 lightning damage. So each lightning attack a Willowisp uses deals 213-467 damage, 42-108 of which is physical. And you can get hit five times per bolt, if it all goes through you. That's 1065-2335.

They're less deadly in v1.11, with that bug fixed.

• All values are listed by difficulty level: Normal / Nightmare / Hell.

Statistics

Normal willowisps can not drop any type of armor or weapons, though they will drop potions and sometimes runes. Champions, bosses and their minions will drop items, and the Treasure Classes for them are given below.

• The TC/Rune drops listed are the highest Treasure Class/Rune Group a normal monster of that type can drop.
  • TC Champions and Bosses can sometimes drop from the next higher group.
  • The max TC/Rune possible may depend on which level a monster spawns in, and can be lower than the maximum. See the item calculators to ascertain precisely what a monster from a given area can drop.

Type	Level	Experience	Hit Points	Speed	Max TC/Rune
Gloam	21 / 50 / 80	244 / 7941 / 53280	34-67 / 451-852 / 1892-4765	15	24/Ral, 54/Um, 84/Zod
Burning Soul	26 / 56 / 83	392 / 11372 / 58172	47-91 / 543-1026 / 2008-5059	15	24/Ral, 60/Ist, 87/Zod
Guest Monsters (Act Five, NM/Hell only)
Gloam	-- / 61 / 83	-- / 15216 / 58172	-- / 620-1172 / 2678-5059	15	--, 63/Vex, 87/Zod
Burning Soul	-- / 66 / 85	-- / 20299 / 61434	-- / 697-1316 / 2781- 5254	15	--, 66/Vex, 87/Zod
Black Soul	-- / 65 / 85	-- / 19212 / 61434	-- / 681-1287 / 2781-5254	15	--, 66/Vex, 87/Zod

Offense

• Willowisp lightning attacks are extremely dangerous since each bolt can land multiple hits. A bug causing massive stacking of these hits was fixed in v1.11, making the spell somewhat less deadly.
• Their melee attack has a chance to steal mana as well as inflicting physical damage.

Type	Melee Attack #1	Mana Drain	Attack Rating #1	Lightning Attack
Gloam	5-21 / 18-47 / 40-104	40% chance of: 1-8 / 41-82 / 182-273	197 / 1188 / 3861	1-8 / 41-82 / 182-273
Burning Soul	6-26 / 21-54 / 42-108	80% chance of: 2-11 / 47-94 / 188-282	246 / 1317 / 3998	2-11 / 47-94 / 188-282
Guest Monsters (Act Five, NM/Hell only)
Gloam	-- / 22-58 / 42-108	90% chance of: -- / 51-102 / 188-282	-- / 1425 / 3998	-- / 51-102 / 188-282
Burning Soul	-- / 24-63 / 43-110	90% chance of: -- / 55-110 / 192-288	-- / 1533 / 4089	-- / 55-110 / 192-288
Black Soul	-- / 23-60 / 43-110	90% chance of: -- / 53-106 / 192-288	-- / 1512 / 4089	-- / 53-106 / 192-288

Defenses

Willowisps can not be life or mana leeched. They can not be chilled or frozen on Hell difficulty.

• Regen Rate tells what % of a monster's hit points are recovered per second. Standard is 1.2/sec.
• Blocking values are assigned to every monster in the game, but the ability is seldom enabled, so most monsters can not block (Hence the blocking % given on most Diablo II monster pages, including Blizzard's, is inaccurate.) When enabled, blocking tells what % of successful, blockable attacks will not damage the monster. Monsters need not carry a shield to block.
• Drain Effectiveness tells what % of a character's mana and life steal apply to that monster. 100 is all, 0 is none.
• Chill Effectiveness tells what % of a character's cold length applies to the monster. 100 is all, 0 is no freeze/chill at all.

Type	Defense	Blocking	Regen Rate	Drain Effectiveness	Chill Effectiveness
Gloam	107 / 800 / 1797	--	1.2/sec	0 / 0 / 0	50 / 33 / 0
Burning Soul	131 / 883 / 1858	--	1.2/sec	0 / 0 / 0	50 / 33 / 0
Guest Monsters (Act Five, NM/Hell only)
Gloam	-- / 952 / 1858	--	1.2/sec	-- / 0 / 0	-- / 33 / 0
Burning Soul	-- / 1021 / 1898	--	1.2/sec	-- / 0 / 0	-- / 33 / 0
Black Soul	-- / 1007 / 1898	--	1.2/sec	-- / 0 / 0	-- / 33 / 0

Resistances

• Resistances over 99% are listed as immunities and monsters will take no damage from that type of attack.
• Immunities can be "broken" by skills that lower resistance, if the value drops below 99%. See the Resistances page for more details.

Type	Physical	Fire	Cold	Lightning	Poison	Magic
Gloam	40% / 40% / 60%	0% / 0% / 0%	0% / 0% / 0%	50% / 70% / 100%	0% / 0% / 0%	0% / 0% / 0%
Burning Soul	60% / 60% / 80%	0% / 0% / 0%	0% / 0% / 0%	70% / 85% / 110%	0% / 0% / 100%	0% / 0% / 0%
Guest Monsters (Act Five, NM/Hell only)
Gloam	-- / 70% / 90%	-- / 0% / 0%	-- / 0% / 33%	-- / 100% / 100%	-- / 50% / 105%	-- / 0% / 50%
Burning Soul	-- / 70% / 90%	-- / 0% / 0%	-- / 0% / 33%	-- / 100% / 100%	-- / 50% / 115%	-- / 0% / 50%
Black Soul	-- / 70% / 90%	-- / 0% / 0%	-- / 0% / 33%	-- / 100% / 100%	-- / 50% / 110%	-- / 0% / 50%

Locations

• Guest Monsters are found only in Act Five, and only on Nightmare and Hell difficulty levels.
• Monsters in areas marked "Boss Only" will only appear as random bosses or champions.
• Monsters in areas marked "No Boss" will never appear as random bosses or champions.

Type	Acts 1-4: Normal, Nightmare, and Hell
Gloam	Act 3: Great Marsh, Swampy Pit 1-3
Burning Soul	Act 4: Plains of Despair
Guest Monsters (Act Five, NM/Hell only)
Gloam	Act 5: Frozen River, Icy Cellar
Burning Soul	Act 5: Throne of Destruction
Black Soul	Act 5: Worldstone Keep 2