This is my current personal best at skull cavern. No exploit, no cheat, no mods. I wish those prismatics are enough to get every enchantments I want. This is fall year 3 btw.
Dang. Nice I can get to around level 120 on a good day lucky maybe 135 and if i'm speed running 150 lol (with stairs) and lots of bombs and speed foods
Around floor 60 iridium nodes become plenty, that's where your prismatic hunt begins. Skip infested and unworthy floors. I only bring about 100 bombs, most of stone clearing is by napalm ring. My sword is crusader and the hammer is bug hunter, pretty much what you need to counter every enemies in skull cavern. Lucky day + spicy eel + ginger ale makes you find stairs / shafts pretty quick.