I’m personally not a fan of how WHC’s main passive works currently. As I understand it, his passive can be applied by the whole team. This doesn’t really fit with his leader archetype. Honestly, it feels like it was put together last minute especially given how it uses the same buff as shrapnel.
I think it would be better if WHC got his own uniquely colored mark. The color doesn’t really matter too much as long as it’s notably different. Anyone that Saltz marks would take 20% extra damage. You could even make his mark last longer so that he doesn’t have to keep reapplying it.
Wait, isn’t that a nerf? Yes and no. You could very well argue that his unique tag would have a powerful psychological effect on your team. Currently, most teammates are completely oblivious to WHC captains passive. This new distinct tag would subconsciously encourage your teammates to target whoever you have tagged. In pubs, I could see this as being a pretty meaningful buff.
However, this would be a straight nerf with a more organized team. As such, I think to compensate, either his ult or his talents need to get some love. Imo his ult could definitely do with higher crit chance or maybe a longer duration.
I believe this change to his passive coupled together with some other minor buffs would make WHC a far more enjoyable and thematically interesting character.