Dumb Question S02EP03: Amplify, Magic Resist, and some Maths

Do bonus damage from Ethereal Blade, Orchid Malevolence, etc stacks with Ancient Seal, Veil of Discord, etc?

Hypothesis 1:
A spell deals 100 damage
Is amplified by 25% into 125 damage (amplify magic damage does not reduce magic resistance)
Target has 25% magic resist before and after magic amplification, receiving 125 - (125:4) damage

Hypothesis 2:
A spell deals 100 damage
Is amplified by 25% into 125 damage (amplify magic damage reduces magic resistance)
Target has 0% magic resist after magic amplification, receiving 125 damage

So essentially the question is, do amplify magic damage stacks with magic resist reduction like Decrepify+ Ancient Seal, or the game redo the maths?

Previous Episode: Clinkz Offlane

Hamster, where are you? You're always here to answer. Confused?

It's "Hypothesis 1" for Magic Damage Amplification, so for example you use Ethereal Blade on someone for 100 Damage, the Maths would be:-

Damage * Magic Amplification * Magic Resistance
==100 * (1 + 0.4) * (1 - 0.25)

Also, Magical Damage Amplification stacks, so if you used Max Level Ancient Seal, followed by Ethereal Blade for 100 Damage, you'd get:-

==100 * (1 + 0.4) * (1 + 0.45) * (1 - 0.25)

---

As for "Hypothesis 2", Magic Resistance Stacks in the same way, so if you use Ancient Seal + Ethereal Blade on a Rubick with Maxed out Null Field for 100 Damage, you'd get:-

==100 * (1 + 0.4) * (1 + 0.45) * (1 - 0.25) * (1 - 0.2)

The only ability I know of that reduces Magic Resistance is Ice Vortex, but don;'t think that it gives you 0.25 - 0.3 Magic Resistance, it stacks multiplicatively, so again, if you used Ancient Seal and Ethereal Blade AND Ice Vortex on a Rubick with Maxed out Null Field you would get:-

==100 * (1 + 0.4) * (1 + 0.45) * (1 - 0.25) * (1 - 0.2) * (1 + 0.3)

******* Xyrus use simple maths already youre like a PH.D on mathemathics.

What i ask is if magic amp stacks with resist reduction. I think you lost me with your maths. Thanks though.

P.s Nvm i got it too late

It's not really that complicated, it's barely even High School level tbh. Don't believe me? Ask me about which is more effective against Physical Damage, Armour or HP? and find out! <|8{D

Dota tooltips are pretty confusing on that.

There is actually no such thing as "magic resistance reduction". Only one thing exists : "magic damage amplification". Ethereal blade, Pugna, Elder Titan, Skywrath, Veil, Ancient apparition, it's all the same. There is only one type of effect and it all stacks multiplicatively.

Tooltips have been fixed recently, at least on Elder Titan and Skywrath. It was horribly unclear before.

Example math : Ethereal Blade on Skywrath Mage

lvl 3 Mystic Flare : 1400 damage
25% natural magic resist : *0.75
40% amplification from Eblade : *1.4
45% amplification from ancient seal : *1.45

Total : 1400*0.75*1.4*1.45=2131 pure damage. And that's just the ult not even the Eblade damage. Eblade Dagon Skywrath OP :)

If you add a veil, multiply the result by 1.25. If the target is an Anti-mage, multiply it by 0.5. And so on.

Orchid Malevolence is a bit different. What orchid does is, at the end of the 5 seconds, it deals magical damage equal to 30% of the total damage taken during the debuff. Orchid doesn't technically amplify damage, it just adds an additional source of damage after a set time.




Naah, just not omnipresent <3

TLDR : DotA tooltips suck. If you're ever confused about something look on the wiki.
http://dota2.gamepedia.com/Magic_resistance

Dear Xyrus,

which is more effective against Physical Damage, Armour or HP? I guess it's about damage/hp coefficient being the factor but I'm too lazy to do maths today, so I ask you,

Dear Xyrus,

which is more effective against Physical Damage, Armour or HP?

Sincerely,
Me.

Sincerely,
Me.

Yes, I know. Im at Junior High, but this semester im REALLY drop down on Meth. I mean math.