Guild Wars 2

Do these two traits (found within the Shadow Arts line) work with each other like I would hope they might? Will the poison attacks I grant to allies also heal them when they trigger the venom? Thanks for any response on the matter.

Yup, they do!

See here for more detail:
https://forum-en.gw2archive.eu/forum/professions/thief/PvE-Healing-Support-Thief