Some time ago I wanted to figure out which items I would need to hunt to ascend all the 3* and higher heroes I had to their max level. As doing this by hand is quite some work, I created a calculator. You can input the heroes and items you have, and it’ll tell which items you still need and where you can find them.
I figured maybe more people would like to use it, so I made a Google Sheets version to share: Ascension Materials Calculator . Instructions on how to use it are included on the first sheet. 1* and 2* heroes are not included in the calculator, as I don’t expect anyone to level those up.
If you just want to check the items you’ll need for a specific ascension level, check the second sheet.
For the data I heavily relied on the sheet for high level ascensions from @Coppersky, but I amended it with data I got by playing the game and input from my fellow guild members in Down the rabbit hole ( @Konijntje).
If you find any faults in the file or in the data, please do not hesitate to let me know.
As you can see on the second sheet, for some ascension levels I have not yet checked the materials needed in-game (current values are expectations based on the patterns in the materials needed). If you are able to confirm the materials needed for any non-checked ascension levels, please let me know!