How to Create an Infinity Polearm


Infinity in Diablo 2 Resurrected is the runeword BerMalBerIst. To create it, you need to insert a Ber rune, Mal rune, Ber rune and Ist rune in a 4 socket polearm or spear. Make sure to put the runes in the right order and that the base item has exactly 4 sockets, or else the runeword will not work.

Choosing the optimal base for Infinity

The recommended base to make Infinity is a Thresher or a Giant Thresher

ThresherGiant Thresher

When using Infinity on a mercenary, the base should ideally be ethereal. Ethereal items have 10 less Strength and Dexterity requirements, and 50% more damage or defense. When used on a mercenary, they won't lose durability. There are in total 11 eligible bases. The Colossus Voulge, Thresher, Cryptic Axe, Great Poleaxe, Giant Thresher, Stygian Pike, Mancatcher, Ghost Spear, War Pike, Matriarchal Spear and Matriarchal Pike.

What to look out for

Looking purely at base weapon attack speed, the fastest base is the MancatcherThe base with the highest damage is the War PikeFor a mercenary, high weapon speed modifiers are usually preferred over high damage weapons.

The base with the lowest strength requirement is the Matriarchal Spear.  The Matriarchal Spear only requires 114 Strength to equip. Strength requirements are an important decision factor on a mercenary, because there is no real way of giving them more Strength, apart from leveling or gear.  Besides gear, when reaching a certain level, it can take a long time to increase their Strength, because each level only adds +1.5 Strength for the Desert Mercenary.  For reference, the Holy Freeze Desert Mercenary has 169 base Strength at level 75.

If you only take into account how easy it is to obtain the right base with the right amount of sockets, the Colossus Voulge and Stygian Pike is the easiest to obtain.  Since the Colossus Voulge and Stygian Pike can only have a maximum of 4 sockets, Larzuk will guarantee a 4 socket base.

table of base stats (ethereal)
Colossus Voulge25.5 - 247.5 (136.5)20045410
Thresher18 - 211.5 (114.75)1421085-10
Cryptic Axe49.5 - 225 (137.25)15593510
Great Poleaxe69 - 190.5 (129.75)1698960
Giant Thresher60 - 171 (115.5)1781306-10
Stygian Pike43.5 - 216 (129.75)1588740
Mancatcher63 - 138 (100.5)1221245-20
Ghost Spear27 - 232.5 (129.75)11215360
War Pike49.5 - 267 (158.25)15596620
Matriarchal Spear97.5 - 142.5 (120)10413260
Matriarchal Pike55.5 - 229.5 (142.5)122139620


Since the Thresher and Giant Thresher both have the highest weapon speed and comparable average damage, they are both the best option. The Giant Thresher has marginally more damage output than a Thresher, but this is negligible. When looking at the Strength requirement, the Thresher can be the more usable option, since the Giant Thresher's Strength requirement easily surpasses your Mercenary's Strength on a moderately high level.

The Cryptic Axe on the other hand has the highest average damage, but is the slowest polearm. This makes the average damage output lower than the (Giant) Thresher and has less chances to proc because of the lower attack speed.

Where to find

A 4 socket Thresher can be found earliest in Hell difficulty. Since a 4 socket Thresher can only drop from level 71 areas or higher (from normal monsters), the earliest area you can find this base in is The Den of Evil, which has an area level of 79.

Obtaining the runes for Infinity

All of the runes for this recipe are hard to find. Because it requires multiple high runes, this recipe is particularly hard to make.

where to find runes for Infinity
malCompleting the Hellforge Quest on Hell difficulty
istCompleting the Hellforge Quest on Hell difficulty
berFarming high density areas in Act 3 or higher on Hell difficulty

The benefits of Infinity

Infinity takes a top spot as overpowered runeword because it is the best mercenary runeword for characters that deal elemental damage. The Conviction Aura granted by this aura runeword reduces enemy defenses and lowers enemy cold, fire, and lightning resistances.

Even though the runeword provides additional reduced Enemy Lightning Resistance, this only applies for the wielder of the polearm. So when using this for your mercenary, this will only boost the Chain Lightning procs from the runeword. When using Infinity for a mercenary, the best base is an ethereal (Giant) Thresher.

The high cost of 2 Ber runes makes this a very rare runeword.

Patch 2.4: Infinity, Obedience, and Pride can now be made in Spears and Amazon Spears.

The resulting runeword will have the following stats. Since this runeword has varying attributes, you might end up with an undesirable item if the attributes didn't roll high enough. The important variable attributes are highlighted below.


'BerMalBerIst'required level: 63gear type: polearm | spear
  • 50% Chance To Cast Level 20 Chain Lightning When You Kill An Enemy
  • Level 12 Conviction Aura When Equipped
  • +35% Faster Run/Walk
  • +255-325% Enhanced Damage (varies)
  • -45-55% To Enemy Lightning Resistance (varies)
  • 40% Chance of Crushing Blow
  • Prevent Monster Heal
  • +(0.5*Clvl) To Vitality (Based on Character Level)
  • 30% Better Chance of Getting Magic Items
  • Level 21 Cyclone Armor (30 Charges)
  • socketed (4)

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