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  • Gem of Efficacious Toxin: only needed in 1 character in order to add the 10% debuff for the whole party.


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Ignore my pitiful attempt at a quote. This is not true. I have personally tested multiple Toxin gems and the 10% damage buff stacks just like Strongarm does.

The confusion here is when people ask if Toxin stacks the question is ambiguous. It should actually be separate questions, such as:

1) Does the poison dot of the Toxin gem stack for a single character?
2) Does the posion dot of the Toxin gem stack from multiple characters?
3) Does the 10% dmg buff stack from multiple characters using Toxin gems at level 25+?

When most people see the question "Does Toxin gem stack?" they are thinking #1. The obvious answer to that is no. Everytime you hit you don't get a new stacking toxin dot you just refresh the duration of the dot.

#2 Clearly is a yes. Each player can put a dot up per target with the gem or otherwise the dmg portion of the gem would be totally wasted in a party.

#3 Is what groups and multiboxers are normally asking for and rarely does this question get answered correctly. I have tested this and the answer is yes the 10% debuff stacks for each member of the party using toxin. You can do this test pretty easily yourself. Just take whatever multibox team you have create level 1 characters of the same class to get starter weapons and then put those on your actual team with the toxin gems. Then use those starter weapons on your team to attack mobs. Attack with one first and take note of the damage. Then attack with a second to apply his toxin buff and then attack again with the first to see that the damage has gone up about 10%. Keep doing this for all 4 characters and you can see it stacks easily. This works because the starter weapons only have a dmg range of 1-2 so it is really easy to see 10% buffs in the dmg variance they cause. Toxin is also easy to verify because it lasts 10 seconds and is applied on any attack so it is very very easy to test.

This makes toxin one of the best gems for 4 player parties simply because it provides a 40% overall dmg buff when you account for 4 players. No other gem is a 40% dmg buff.