Energy Shield

Template:LS Sheathing herself in pure energy, the Sorceress walks fearlessly into the fray. So long as she can maintain her concentration over this magical buffer, she diverts harmful magical energies and absorbs physical harm into her store of Mana.

Details

Level 1-60 stats

Stat	Value
% Damage Absorbed Redirected to Mana	100*((32-Telekinesis.blvl)/16)
Duration (Seconds)	84+(60*slvl)

Stat	Level
	1-8	9-16	17-22	23-28	>28
% Damage Absorbed	15+(5*slvl)	39+(2*slvl)	55+slvl	55+slvl	min(55+slvl,95)

• Absorbs damage after Bone Armor and Cyclone Armor are applied. [1]
• Absorbs physical damage, Magic Damage, Fire Damage, Lightning Damage, Cold Damage, stamina damage and mana damage, but not Poison Damage (not even the first frame). [2]
• Applies to damage returned by Thorns, Iron Maiden and Spirit of Barbs, and to Static Field damage. [3] [4]
• Does not apply to Sacrifice self-harm, Open Wounds or Crushing Blow. [5] [6]
• Level >39 absorbs 95% damage.
• 200% of damage absorbed is redirected to mana unless skill points are invested in Telekinesis:

Template:Level 1-10 |- !align=left|% Redirected to Mana |193.75||187.5||181.25||175||168.75||162.5||156.25||150||143.75||137.5 |}

Template:Level 11-20 |- !align=left|% Redirected to Mana |131.25||125||118.75||112.5||106.25||100||93.75||87.5||81.25||75 |}

• Level 20 absorbs 75% damage: this would result in 100 damage being reduced to 25. With no points in Telekinesis 200% of 75 is redirected to mana, so 25 life and 150 mana is lost instead of 100 life; with 20 points in Telekinesis, only 75% of 75 is redirected to mana, so 25 life and 56.25 mana is lost instead of 100 life. Equipping (Magic) Damage Reduced by 25 would then result in no life loss.
• 100 base mana damage would normally be increased to 200 in Hell after the Resist -100% penalty. However, level 20 ES and level 20 Telekinesis reduce base mana damage to 25 (which is subsequently increased to 50 in Hell) then 75% of 75 is redirected to mana, resulting in just 106.25 (50+56.25) mana lost instead of 200 mana (ES mana loss is applied before final mana damage). [7]
• Expires when its duration expires, or when the Sorceress is reduced to 0 mana.
• % Damage Taken Goes to Mana returns mana after Energy Shield's mana loss: ES expires when more mana is lost than the Sorceress currently has, even if % DTGM fully compensates for it afterwards. [8]
• Redirecting damage from life to mana can be preferable due to its innate regeneration, which can be increased significantly by Regenerate Mana +% from Warmth, Meditation and items.
• Mana damage from Wraiths, Willowisps and Mana Burn Unique monsters (and their minions in Nightmare and Hell) can be significant enough to make it difficult to maintain ES. Melee attacks of Mana Burn Unique monsters and their minions apply mana damage 256 times higher than they should: in Hell this can be enough to reduce a Sorceress from full to zero mana with a single hit. [9]

Source

Skill bonus

• +(1-3) Energy Shield (Sorceress Only) can spawn on ilvl >24 orbs and staves.

Value	Source	Min Rlvl	Ladder
+3	Memory staff	37	No
+3	Warpspear Gothic Staff	39	No
+3	Ormus' Robes Dusk Shroud	75	No

Level 1-60 stats

Details

Stat	Level
	1	2	3	4	5	6	7	8	9	10
% Damage Absorbed	20	25	30	35	40	45	50	55	57	59
Duration (Seconds)	144	204	264	324	384	444	504	564	624	684

Stat	Level
	11	12	13	14	15	16	17	18	19	20
% Damage Absorbed	61	63	65	67	69	71	72	73	74	75
Duration (Seconds)	744	804	864	924	984	1,044	1,104	1,164	1,224	1,284

Stat	Level
	21	22	23	24	25	26	27	28	29	30
% Damage Absorbed	76	77	78	79	80	81	82	83	84	85
Duration (Seconds)	1,344	1,404	1,464	1,524	1,584	1,644	1,704	1,764	1,824	1,884

Stat	Level
	31	32	33	34	35	36	37	38	39	40
% Damage Absorbed	86	87	88	89	90	91	92	93	94	95
Duration (Seconds)	1,944	2,004	2,064	2,124	2,184	2,244	2,304	2,364	2,424	2,484

Stat	Level
	41	42	43	44	45	46	47	48	49	50
% Damage Absorbed	95	95	95	95	95	95	95	95	95	95
Duration (Seconds)	2,544	2,604	2,664	2,724	2,784	2,844	2,904	2,964	3,024	3,084

Stat	Level
	51	52	53	54	55	56	57	58	59	60
% Damage Absorbed	95	95	95	95	95	95	95	95	95	95
Duration (Seconds)	3,144	3,204	3,264	3,324	3,384	3,444	3,504	3,564	3,624	3,684

Reference

• Lightning Spells (Arreat Summit)
• Energy Shield, Damage Taken Goes To Mana, Mana Burn (Technical Discussion)
• Nefarius, v1.10-v1.11b Bugs Collection (Phrozen Keep)