{BUG} Tahm Kench w glitch with Karthus e
When Tahm Kench devours Karthus with w while Karthus has his e on his e will continue to stay on and damage Tahm Kench. . I hope you take the time to read this and fix this bug . Hope you fix it byes.

When Tahm Kench devours Karthus with w while Karthus has his e on his e will continue to stay on and damage Tahm Kench. . I hope you take the time to read this and fix this bug . Hope you fix it byes.

This is intended. Any persistent AoE's will continue even after Tahm Kench Devours the champion (both ally and enemy). This includes stuff like Karthus' E, Garen's E, Shyvana's W, or even Kennen's ultimate. I think of it kind of like a Zhonya's effect, if something would still remain active during Zhonya's stasis effect, then it will remain active while the champion is in Tahm Kench's stomach.