Hero Wars Heidi Event Boss: Best team up until boss level 180 with no buffs and no Tree of Wisdom needed!
This video shows the boss fights up to and including the level 180 boss Root of Evil of the current King of the Jungle event (also level 130, 140, 150, 160, 170 at the end of the video).

UPDATE:
Some buff levels might be "too high". What I mean is that with some buff levels Rufus might not be revived because the final hit will be a physical attack most of the time as compared to other buff levels where the final hit will be Celeste's magic attack which will revive Rufus.
I just uploaded the proof that the Tree of Wisdom does NOT MATTER. I hope to have a discussion in the comments there about solutions to these issues:
   • URGENT: Tree of Wisdom DOES NOT MATTE...  
I hope this helps!

IMPORTANT:
If this worked for you, please post in the comments what buff level worked for you. There are many who struggle and every bit of information helps!

If you want to support me, a thumbs up always makes me happy! :-)

*This content is not affiliated with NEXTERS, is not supported, is not sponsored or approved by it , and NEXTERS is not responsible for it.
All artwork and gameplay footage are the property of NEXTERS, unless otherwise stated or implied.

References:
https://de.pngtree.com/freepng/seal-r...

*AI used in this video: All voices in this video are AI voices.