No. I know you were saying blah blah Lightning Hydra blah blah stun but assumed you figured it out by the time I did (the bug was not only pretty clearly evident on normal use but also fairly well documented) so I didn't tell you.
I tried it with elites trapped by a bridge. Sat there for like 3 minutes waiting for a proc. Didn't happen. You can definitely notice it now though. Procs pretty often because each of the three hydra head shots can trigger it.
Maybe they hotfixed the "life on kill" hydra bug and this benefit was runoff I dunno.
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No problem!
This is a cute and pop genocide of love!