Ancient Mixed Golems defense buff?

Well, first time I've had a 190+ character with enough HP to actually train there. My Hayato has about 3k more HP than the damage they do, and was dying even with autopot.

Still dunno if I will long term; it doesn't have anywhere I can afk reliably and I do die in about 3 hits, so it's hard to chat. (tried the top left under advice and was getting hit all the way to the edge)

There's a spot on the left edge of that platform where it starts to slope downward. You have to be on the slope, as far over as you can get. I typically have no issues putting my bishop there for HS. Kanna can teleport to the ledge WAY up top, so it's easy to have a kanna mule. If you are looking to afk yourself for periods of time, then you will have difficulty reaching the safe spot. The golems are likely to knock you out of it while you are on your way to it (which is REALLY frustrating).