My first completion this weekend, 470 and 450 in the past then down to about 370.
Mostly I’ve been trying to have just 1 team as I’m stubborn. This time I swapped at 300 and glad I did as I ran through in less than 9 mins for each run.
Things like Gray King and Weaver/Mother of Darkness are great, fast, but eventually take too long and hero is susceptible to skull death.
If you can use Irongut, everything speeds up, especially if potions take you close to, or over 100 attack.