Personally i’m not in favor of this idea. Rangers already have it easy. Giving them more abilities like resurrecting and healing others seems a bit over the top. But feel free to have a discussion. If there’s enough people in favor it can always be changed.
I lean the same way as Nagash, rangers already have a lot going for them.
It does have a nice thematic ring to it, make a safe campsite.
If it were to be done, I’d say it needs to be slow enough not to affect balance, and fit with the feel of the skill/class.
For example, if you have a campfire outside in a wooded area, with no monsters closeby, the fire could act as a resgate or similar to a ship’s res ability after its been burning for a bit.
However, that seems like a lot of effort to make and in practice, running to a resgate will be quicker and thus used more.
Making the fire heal has balance implications, as that would make the ranger the only class able to heal after resurrection.