Do heroes need to be infused?

It doesn't say in their inventory screen that their armor is infused, however, didn't Anet apply an update that makes all hench infused? also, i tested this out, sending a hero against 3 mursaat, and the test would suggest that he was infused. Anyone know for sure?

1 more question, the armor for Olias on his head gear says: +1 Item's Attribute. What does this mean? does this mean that if he is holding a blood magic staff that the game will recodnize it, and raise his blood stats by 1? I've actually tested this out with minions, as thats the easiest way, and it seems that when equipping a death magic staff, his death magic isnt upped by 1. So anyone know what the ITEM'S ATTRIBUTE +1 really is? i mean i figure it boosts the att of the weapon, it even says ITEM'S in the description, which would suggest that, because ITEM'S is possesive? ugh iono

It means whatever his headgear is attuned to. To find out, you can check the skills window for the blue attribute number that tells which one has been upped, or you can apply a rune or insignia and look on the preview screen to see what the headgear's attribute is. Like Zhed's headgear gives him Water Magic +1, Olias I think is blood but I'm not sure.

The items attribute, change when you apply a rune on it, for example if you use a healing prayers minor rune, the headgear will have +1 of the rune and +1 of the headgear.

Heroes are infused in the same manner that henchies are
- their armor doesnt display the "infused label"

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Heros are auto infused, i know this could i took them straight into thunderhead keep without doing ironmines and they recieved normally damage amunts instead of totally crazy non infused damage, im not sure if this could be linked to weither i am infused or not or weither its due to being on a mission after iron mines. Hmm illl have to take them to Ice caves and see if they take extreme damage there Vs the mursaat