[Chaos]

iDarkCara » Tue Oct 20, 2015 8:21 pm[/url]"]Synthesis just reads: At the start of a new round, if the owner of this skill is immobilized, all enemies within 3....

That's why this is working as intended. People seem to keep forgetting that the only thing Ingrain does is Immobilize the user. It's Synthesis that procs the HP drain.