I’ve been doing some testing and while Flametongue weapon DOES proc on both auto attack and stormstrike hits Flametongue totem weapon imbue DOES NOT proc on stormstrike or windfury bonus attack hits. As stated in both Flametongue weapon and Flametongue totem’s descriptions “Each hit causes additional fire damage”
I’m assuming that this is a bug since [torturing poker] from Vishas in SM Graveyard on-hit effect DOES proc with stormstrike and each subsequent bonus windfury hit. However the description of the poker reads “Melee attacks with this weapon tortures the target”.
Nonetheless, the behaviors of Flametongue Weapon and Flametongue Totem are inconsistent from one-another despite having identical descriptions.
Ultimately what to do is up to the devs, but I hope that this doesn’t result in a nerf to Flametongue weapon which makes FT weapon not proc with stormstrike or windfury. It’s more fun and makes more thematic sense for flametongue to proc on ALL melee hits as opposed to JUST white auto-attack hits. Seeing the extra flametongue numbers fly on the screen on a big windfury proc is very fun.
Edit: Looks like this has been fixed in the new build and FT now procs off each WF hit as the bonus hits from WF are white damage now. Thank you, Devs! 