Magic resistance

[Master Baiter]

Does pipe stack with Eternal shroud? and what does multiplicatively mean?

[Zagryzaec]

https://dota2.gamepedia.com/Magic_resistance

Basically its mean that 50% + 50% magic resistance will not give you 100%.

It will give you 50%
+ 50% of the your new magic resistance (50of50 = 25)
In total you get like 75% resistance instead of 100.

Overall it means that every next individual source of resistance will be less efficient in absolute value.


There is more univeral formula to count it in the provided link and more info on the topic.

[Hollow]

Originally posted by In Science we trust:

Does pipe stack with Eternal shroud?

Yes.

Originally posted by In Science we trust:

What does multiplicatively mean?

Multiply all the heroe's magic damage reducing modifiers with another to get the value that remains as damage taken. 1 - damage taken = your resistance.

Example:
Hero base resisance: 25%
1) +30 with Pipe of Insight
2) +15 (+45 while active) with Glimmer Cape

Glimmer Cape not active:
1 - ( (1-0.25) * (1-0.3) * (1-0.15) ) =
1 - ( 0.75 * 0.7 * 0.85 ) =
1 - ( 0.44625 {which means 44.625% damage taken of the original 100% received} ) =
0,55375 = 55.375% magic resistance

Glimmer Cape active, adding another +45%:
1 - ( (1-0.25) * (1-0.3) * (1-0.15) * (1-0.45) ) =
1 - ( 0.75 * 0.7 * 0.85 * 0.55 ) =
1 - ( 0.2454375 ) =
0.7545625 = 75.45625% magic resistance

You can equip the same item twice and benefit from it's magic resistance. The formula means reaching 100% isn't possible.