List of inconsistent pierce debuff immunity behaviours

[commentator24]

There are currently some inconsistent pierce debuff immunity behaviours. i'll keep adding if i find something. This list is incomplete but upvote maybe?	Hero	apply Debuff	Works?	Inconsistent?	Comments
ItemBlightStone	[x]	[x]	[x]	should apply debuff but no effect. as comparison corrosion apply debuff but no effect.
ItemOrbCorrosion	[x]	[ ]	[ ]	apply debuff but no effect.
ItemDesolator	[x]	[x]	[x]	should apply debuff but no effect. as comparison corrosion apply debuff but no effect.
ItemMKB	[ ]	[x]	[x]	no combat log. combined as physical? damage seems reduced a bit
Jakiro(3)	[x]	[x]	[x]	should apply debuff but no effect. #12627
Lich(3)	[x]	[ ]	[x]	apply debuff but no effect, but inconsistently stop movement skills when not suppose to #13312
WinterWyvern(U) Secondary Targets	[ ]	[ ]	[x]	Missing icon. should apply debuff but no effect (alt-tooltip does say only primary target pierce, not secondary)

So if bkb / debuff immunity used first. any non-pierce negative debuffs applied but no effect. if pierce will take effect. And if BKB again, basic dispel remove debuff (unless strong debuff only, e.g. to remove stuns need strong dispel) during bkb mkb effect reduced by~25 https://dota2.fandom.com/wiki/Debuff_Immunity/Interactions

[NAlexP]

Add the fact that muerta's ulti pierces bkb and pa's shard that deals pure dmg deals 0 on bkb and magic immune heroes.

[commentator24]

@NAlexP thats just your misunderstanding, so won't be added pure + pierce = debuff works, takes 100% pure. e.g. bane ult, enemy stunned. pure/magic + no pierce = debuff applied, but no effect. 0 pure/50% magic (from bkb). further resist e.g. oracle(2) works. magic + pierce = works, 50% resist from bkb ignored, other resist works e.g. oracle(2).

so following this logic.. muerta is magic + no pierce. enemy takes 50% magic dmg even if bkb used. But if you use oracle(2) it's 0 dmg. this 50% dmg looks like it pierce to you PA shard is pure + no pierce. enemy takes 0% pure dmg when bkb used. so both works as intended

[NAlexP]

My misunderstanding, yes? Where bristleback passive works before and after shard is used and also takes 0 dmg from fan of knives?

NVM, don't bother adding anything, I've since figured out you're the idiot arguing for teleporting farther away from the cursor while invoking missclicks as an argument.

Muerta has since been fixed, so I was wrong there.

[commentator24]

My misunderstanding, yes? Where bristleback passive works before and after shard is used and also takes 0 dmg from fan of knives?

you need to change combat log from Attacker: All to Attacker: bristleback to see. well yes Bristleback passive still works during bkb, since fan of knives does not pierce. debuff is still applied but no effect. bb passive only breaks if the debuff pierce. and since fan of knives doing 0 damage, it won't quill spray until you deal 225 dmg. here you can see it still quill spray from the back during bkb. i didnt cast it

[Aluerie]

WinterWyvern(U) Secondary Targets

• WAI, taunt is an aura, not a debuff.

  ItemMKB

• WAI iirc, evasion proc pierces bkb, damage proc does not hence it's affected by 50% extra magic res from bkb. The absence of a tooltip/indicator is a design flaw, I agree. #10066

  blight orb items

• WAI, corrosion inherits its quality from oov while deso/stone are separate unstackable corruption debuffs. The absence of a tooltip/indicator is a design flaw... I agree #10066

muerta's ulti pierces bkb and pa's shard that deals pure dmg deals 0 on bkb and magic immune heroes.

• WAI per 733

[commentator24]

sorry i meant for wyvern just missing the icon. yeah its working fine