How to defeat Seymour. Campaign Boss | Hero Wars

Titan Battle Quick Reference. Level 130 already supported. English version.
The above video is posted as an English audio video on a video channel I run in Japanese. Please take a look.

[billyridergood]

Thank you for creating and posting this video. I was able to defeat Seymour on Halloween with Martha, Faceless, Jhu, Karkh, and Astaroth with Fenris as a pet. Thanks again for the advice.

[illogical]

My heroes are almost maxed out and I still need to do it manually, I just figured that out today, actually lol but I still can't figure out how to make the orbs explode every single time, however, knowing fire and earth orbs explosions cause more damage to him should probably help, I'll put it to the test.
Update: It didn't work but I managed to beat him on auto after only 2 tries by changing 2 heroes and and switching pets, this is the team I used: Aurora (Cain) PL: 191965, Ishmael (Oliver) PL: 152454, Jhu (Albus) PL: 95636 (Replaced Yasmine PL: 165324), Sebastian (Fenris) PL (167860), Martha (Axel) PL: 83528 (Replaced Celeste PL: 174766), team pet: Albus.
I've started playing this game on 19 Feb 2017 over 8 years ago, (dropped it and picked it up several times (total years of playing are probably 3 years, been playing for about 1.5 years nonstop (minus a few a weeks), longest period so far)). I can't believe how long it took for me to complete it!!!

[huyff.]

Xin chào, tôi là 1 người Việt Nam và video này thật sự rất bổ ích để giúp tôi đánh bại Seymor thank you !!!

[wandakarolina]

not sure how this worked a year ago, my team is now over 200k each using Yasmine or Celeste instead of Kharkh, as he's too low), but still Jhu gets killed pretty soon and I am stuck with 20% of Seymour and no more time :/

[cpadebo]

So you have to have faceless to beat him?

[adibirfan]

I am stuck at path of madness
My team is astronoth + oliver, qing mao+ fenneris, nebula + cain, cornilius + biscuit, martha + axel