If you want the art of war achievement, do auto mode on floor 9 and 10, all nodes daily if you can, it will give you your 500% boosts as well as the 3250 boost.  You will need to use multiples of those to get this achievement.  As well i do it daily if i can, depending on the number of marks of resolve.  So i'm glad i don't have to watch those battles anymore, i'm sure i was dreaming frost excutioners i had done it so many times....

There is a periodic "golden Walk" that happens in HH.  We dont know if it is 1 in 250 or 1 in 2500 or whatever, but you have probably seen it.  It is the one with Less Demons, Demons who dont fight as hard, and more than nrmal number of chests.  It doesnt matter if you are walking through or Auto explore, all explorations caount towards this number.  AND we dont even know if it is a constant number of subject to change.  The thing is, in order to do the final node in the minimum number of tries, you must not waste this magic walk.

Wnce you are where you want to finish the final node, you must walk through it the max number of times a day, every day, and do nothing else in HH.  No auto mode, no walks in other nodes.

Here are images of the 2 setups that I have used on 2 of my accounts to finish the final node.

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gkhelsbank 

I  do not know if what you wrote is true or not, but I completed the last floor, room, and node on my 67 th attempt, without any of that rigmarole, ( anyone interested see my post on page 6)

I'm assuming this is a dead link and question.

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Just completed floor 10 node 7 here is the build used