Soulstunning weapon effect

I bought the Soulstunning Weapon effect MTX making an assumption that the effect would take up the second weapon MTX slot as, at least in my mind, it is more in line with the extra gore effect. Not many MTX apply affects to monsters like the gore and soulstunning MTX but unlike the gore MTX, it occupies the normal weapon MTX slot. I still enjoy the effect, and I am aware that the gore MTX states explicitly that it can be used alongside other visual MTX. However, would GGG consider making this or other weapon + monster focused MTX like effect for the second weapon slot?

I agree with the author's view on this issue.
The value of the Soulstunning Weapon Effect is in its interaction with the environment, rather than in what it does to the visual aspect of the weapon. The faint greenish ghostly effect on the weapon itself frankly looks like an afterthought, and is barely noticeable under bright illumination or daylight. As such, having it as an add-on component like Extra Gore could make more sense, in my opinion.
At any rate, thanks for your attention.
Cheers!

+1, I even wrote support about that MTX after first obtaining it, thinking it wasn't working as intended. Beside being more fit for secondary weapon effect slot, there is also an issue of it only triggering when you stun a mob. And when you freeze, oneshot, shatter, and explode most of the mobs, you would never see that MTX in action. Asked them to make it trigger on death too.

Overall, Tier 3 of that pack is the most shallow tier 3 pack ever, you only get it for quicksilver flask effect.

+1 bump - was also expecting this to be in the secondary slot - any chance this can be updated?

From what I gather, this would only work if you write report as support email and convince them to relay this report to QA department. Then QA maybe orders devs to fix it in next patch. Otherwise, devs couldn't care less about what is being asked on the forum, however detailed and constructive it may be.

Add those treasure hunter loot explosion effects to the list - the metallic reskin of the weapon is rather meh, too.