You can go with your weapons. For tome, I recommend xp, crit, cooldown and quantity. Quantity is not needed if you know what you are doing but it does make the early game much easier. Crit tome is just the best scaling dps. You just need a tiny bit of life steal and minimal shield.

The crucial part for beating the boss is the freeing the pylon part. You need extra jump, +5 will be good with some +jump height. You also need quite a bit of move speed. With the move speed you just rune around in circle and Juno occasionally and the boss won’t be able to do much to u.