Herald of Thunder Bug? (Maybe not a bug, I'm confused.)

So, when you socket Added Lightning Damage to Herald of Thunder, all your other skills get a DIRECT damage buff, as if they themselves were socketed with Added Lightning Damage. If you try with other Added X Damage supports, your skills don't get a bonus and HoT loses the 50% lightning damage as expected.

I'm not sure if it's because HoT inherits the "25% damage as lightning" from the support, and since HoT applies to every skill (more precisely to your weapon) the skills then inherit it (which makes it a pretty cool interaction, not gonna lie) but since it doesn't work the same with other supports (which maybe is the case because HoT is lightning only) of the same type (added damage), might as well post about it here.

It's confusing, but a neat interaction. If someone can test if the same applies to Added Cold/Fire and Herald of Ice/Ash, that would confirm that it probably is intended.

Not sure this is intended, should work only on Herald of Thunder bolts?

When I'm adding Lightning Infusion support directly to attacks - it increased lightning, and decreases fire/cold as it should. When added to Herald of Thunder - it increases lightning on all attacks by the exact same amount - and fire/cold damage is unaffected, which is strange (and also probably a bit strong).

can confirm with herald of ice work same

This also works with Herald of Ice. But not with Herald of Ash.

You're able to slot the infusions in because both Herald of Ice and Thunder have the attack tag whereas Herald of Ash does not. But for some reason the Infusion applies to all other skills whilst the Heralds are active.

Using both essentially gives you a free 50% more damage at the cost of 60 spirit and two support gems.

Absolutely an unintended bug, and a rather exploitative one at that IMO, due to the fact that not all builds will have access to the skills required due to the stat requirements.

I have same problem, but I can activated it, but when attacking there is no debuff that stacks and hits the enemy. In the beginning this gem was working now doesn't