Hello, we need your help to maximize the builds

Hello everybody,

I play a witch with Cremantion / Archmage and my colleague plays a witch aura bot.

Basically we can run 99% of the content easily.
But we would like to try now to get the last of the two builds out of what is possible and useful.
I think it should be in the range of 300ex in total.
Items that we can craft ourselves are also welcome.
It's the first division where we both have such high heroes and
the currency just gushes. In other words, we experience the endgame for the first time.

So I would ask you to take a look at the two builds and support us with tips for the following areas.

- Sirus, we can do it sometimes.
- Delven, our ultimate goal will be and then a depth of 1500+
- Delirium, we can do it. Here we are trying to farm the voice clusters for the Aura Bot. Can someone tell me whether the clusters drop when I kill the boss, after the wave in which a boss has appeared, or at the end of the 20 waves?
- Awakener Spell Cascade can someone tell me whether the addition to the normal Spell Cascade "Supported Area of ​​Effect Skills also affect areas in front of, behind,
and on each side of the targeted area is an upgrade for me?

But I also gladly accept all other suggestions :)

Here are the two links

DD

https://pastebin.com/ScMQdEMJ

Aura bot

https://pastebin.com/fYFmaD1n

THX

SHIEEEEEEEEEEEEEEEEEEEEEEEEEEEEET ... :O

nobody else an idea?