I died 3 times from seemly one hit while helping Cixi kill Gatus. Here's what I found in my logs:

[08/30/17 12:21:14] Gatus hit you with Seeping Blight XII for 404210 slash damage.
[08/30/17 12:21:33] Gatus hit Cixi with Critical Strike V for 1597069 slash damage.
[08/30/17 12:21:33] Cixi has been killed.

Can someone check Gatus out and find out what the deal is please? thank you