DFOArchive: Savior Training Level: An Unrealistic Challenge

Have you ever looked at the Challenge tab in the explorer club and wonder what does the "Adventure Motion Aura Avatar" look like?

To be able to get it you will need to get all subclasses of that class to Savior training level.
This post will give you a rough estimate of how long it would take to get there.

Procedure and Data

With the update of level 100 cap (Season 6 Act 1: Ascension), the character training level cap has been changed.

We know that each training level requires a set amount of EXP, and they increase exponentially.
Since there is no one in the DFOG server have reached Savior training, it's impossible to know how much EXP is needed. However, the author does have the EXP needed for lower levels and was able to find out a rough estimate of the EXP scaling.
Data sample:

Result and Discussion

The author divided the EXP of one level to the previous level, the ratio turned out to be 1.04, which mean with each level, the EXP required will increase by 1.04
The author took this ratio and scale it up all the way to Savior level and got an estimate of the total EXP needed, however, there were some roadblocks. When comparing theoretical and actual EXP from the author's alts, the difference turned to be off by a few levels. For example:

Expert level 33 should require 22,238,447 EXP, but the exact amount is 24,930,662 EXP (a.k.a. theoretical EXP required for level 36)
Leader level 40 should require 171,196,329 EXP, but the exact amount is 224,182,043 EXP (a.k.a. theoretical EXP required for level 48)
Guru level 16 should require 424,826,869 EXP, but the exact amount is 491,210,463 EXP (a.k.a theoretical EXP required for level 20)

When scaling up to Savior training and add them all together, the estimated cumulative EXP required turned out to be 2,485,533,761,335 EXP (that's 2.5 TRILLION). And with the roadblocks explained above, we know that we're at least underestimating this number. The author wouldn't be surprise if it turn out to be 3 trillion.

How Long Would it Take?

After running various level 100 cap dungeons, which require only 8 FP each, the author concluded that Ghent Palace Expert full clear yield the highest amount which is about 10.5 million EXP, not including EXP from each monster kill. Disaster Sector 3 also gives good EXP, but the it takes way too many FP to clear.
Assuming you have 156 FP bar, only 19 Ghent dungeons can be cleared in a day without using FP pot, which translate to roughly 34 years of clearing 19 Ghent Palace EVERYDAY.
AGAIN, between roadblocks and not including EXP from monster kills, we probably will still underestimate the result. How long does it actually take? looks like we'll never know.

TL;DR

If you want to finish all the challenges from the character tab, you will need to get all 61 subclasses to Savior training, which will require you to clear 19 Ghent Palace Expert full runs on each of the 61 characters EVERYDAY for at least 34 years. If it takes 30 seconds to clear the dungeon, that's about 10 hours of playtime everyday for 34 years.
GOOD LUCK, HAVE FUN!!!

Credit

---EDIT Feb. 3rd, 2021---

The reason for the EXP discrepancy has been found.
In this EXP sheet, it only has LEADER up to level 44, not 49 as indicated in DFO patch note.

And if you compare my alt in the image below, who is at Guru 17, the EXP match 100%.
Therefore, the error is that Neople claims the EXP level is changed to LEADER level 49, but in reality, it only scale up to LEADER level 44.

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