Every other endurance modifier on runes/sigils was changed to vigor in the previous patch, but it seems Rune of Adventurer was missed by the balance team.
The rune still gives 50% endurance gain with a 10 second cooldown.
There are a number of builds that can currently use this every 10-15 seconds due to having spammable or very low cooldown healing skills.
It should be standardized to vigor like the rest so there’s actual counter play to the dodge spam.