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Cathan's Rule

Cathan's Rule is a Set Battle Staff that is a part of the Cathan's Traps in Diablo 2 Resurrected (D2R). This normal Staff has a quality level of 15 and a treasure class of 18. This is the only Set item in the game that has +X to Fire Skills attribute.
Cathan's RuleCathan's RuleBattle Staff
Two-Hand Damage: 6 to 13
Durability: 40 of 40
Required Level: 11
Increased Melee Range: 1
Base Attack Speed: 0
+1 to Fire Skills
+10 Maximum Fire Damage
+50% Damage to Undead
All Resistances +10 (3 Items)
+50 to Mana (2 Items)
Cathan's TrapsPartial Set Bonus
Adds 15-20 Fire Damage (2 Items)
Regenerate Mana 16% (2 Items)
Lightning Resist +25% (3 Items)
Complete Set Bonus
+10% Faster Cast Rate
+60 to Attack Rating
Adds 15-20 Fire Damage
+20 to Mana
Regenerate Mana 16%
Cold Resist +25%
Lightning Resist +50%
Fire Resist +25%
Poison Resist +25%
Magic Damage Reduced by 3
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Cathan's Traps

There are 5 items in the Cathan's Traps Set.
Cathan's Visage
Normal 
Cathan's Mesh
Normal 
Cathan's Rule
Normal 
Cathan's Sigil
Normal 
Cathan's Seal
Normal 

How to obtain Cathan's Rule

The fastest way to get this item on Battle.net is via trading, you can use the Item Price Checker to see how much Cathan's Rule is worth.
Farming it by killing monsters is possible, check the drop rate table below for more information.
It can also be gambled but the chances are very slim.

Cathan's Rule drop rate table

The monster with the highest drop chance of dropping Cathan's Rule is The Cow King on Nightmare difficulty in The Secret Cow Level of Act 1. Farming the monsters listed below gives you the highest chance of finding that item.
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Cathan's Rule variants

Below is a list with different variants of Cathan's Rule. See the stats of its normal or upgraded variant.

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