Guys, please tell me what about orb effects stacking in Dota2? is it the same like Dota1 or there is something new? Because, I somewhere read, that in Dota2 MoM and Maelstorm are stacking. Please, give some comments

The same as dota 1, sir!

IceFrog promised us that it'll be the same with dota and the promised is never broken, the only diff. of dota 2 from dota 1 is that you can add things you can't normally add with dota 1

have tested about MoM and Maelstorm, and they are stacking. AFAIK they doesn't stack in Dota1 (I can't test it, because i have deleted WC3), so can it be count as bug or it is new feature? Also, here is link, that they doesn't stack in dota 1 ...

^ Don't know about maelstrom and MoM but in DotA both Maelstrom and Mjollnir stack with other orbs for ranged heroes.

here is a big problem at orb stacking.I'l try to make myself as clearly as possbile.

When talking about Orb Efects you should take in consideration the primary 2 clases :
-orb effects for melle
-orb effect for ranged

The easyest one to explain is for the melle : 2 orb efects /atack modfyer won't stack wich each other,the firstly placed one (meaning from item 1-6) will modyf the hero's melle atack.

Please do not confunde ORB Effect with buff placer/displacer (ex : orb of venom)

When playng as a ranged there are different rules for the orbs.They are categorized as : -self Helper
-and enemy dmger

1 example is the combination used of : Skadi (slows enemy than its enemy dmger) with satanic ( every atack heals yourself so it's self helper)

This type of Orbs Do work with eachother only on ranged:

There are different more combinations to go with : Mijlnoi is Enemy Dmger as it sends out lightings and Mom is self Helper:

Now biggest question wich are the self helper orbs: Atm i found out that Life steal is the only Working with the other orb efects.

To be tryed is the Desolator with Skady,but i think they will not stack.


Anyway to be clear : Playng Ranged heroes = 2 orb efects are allowed ( 1 of them lifesteal).
Playng as melle only 1 allowed(That's why vladimir is only for melle)

Now some additional info : Never make skadi on venomancer Both his passive and skadi its;f are Buff placers.


Hope this helped you with your problem.

AFAIK, lifesteal and manaburn doesn't stack. And today i checked about MoM and maelstorm on Alchemist (he is melee) and both types of orbs are working. Can u check it in dota1? As far as i remember, in dota1 if you have LL and maelstorm there is no lightings, but i can be wrong, and i haven't got Dota1 to check this out

Ok test it sorry for the first posts: sincerly in older version worked and i tested they do work.........

But we are on the date and it's my fault


Now the combinations that work are:
-Orb efect lifesteal : Satanic ,Mom,Dominator
-Buff placer : Skadi
-Atack modfyyer : Desolator,Difusall,Mijlnoir,Mael torm

Combinations that work : Life steal + Skadi
Skadi + Mijnoir/Maelstorm


THe only one who works(atm on ranged)

List of primary used orb efect:First will be lifesteal (not depening of position anymore)
-second is Desolator
-third is maelstorm
-Forth is diffusal
-fifth is skadi

Melle :


Upgrade : No The orb efects of skadi does not change into buf placer so the rule is there 2 orb efects won't work togehter.
Tested specifically on alchemist : Mom + Maelstorm/Mijlnoir = doesnt work
THe same rule is applyed as upper:

IF you hold multiple orb efect in inventory the one's with the effect will be the first gratued in the upper list

You have done very good job. I have tested in Dota2 stacking of orb effects. At first, in Dota2 there is no concept like orb effect, only Unique Attack Modifier. So about stacking. Diffusal, Dessolator And Skadi are not stacking. High priority have orb, that was granted firstly. Also, Lifesteal doesn't stack with Dessolator and Diffusal. About Maelstorm. It is stacking with all of orb effects, but when light goes out other effects wouldn't work. Beside that, Skadi and Lifesteal are staking quite good. Also, we can make Maelstorm, Skadi and Lifesteal and they would work. I have tested it in melee hero (strygwyr) in neutrals creeps. I think this results are different with dota1, so can consider to be a bug, or something else.

PS have sent this information in Valve, may be they will answer me.

I'm sure valve will appreciate the information well done.

As far as I remember, Mjollnir and Maelstrom was changed to only work as an orb when then lightning triggered. I will do some research, even though I can't test it myself right now.


EDIT:
Checked it for Dota2 now, and Mjollnir works as an orb effect on each attack and as both orb and buffplacer on trigger.

EDIT2:
... and the same should go for DotA.