Firstly, you need to understand how increasing equipment levels works.

In season 4 you can level the equipment up to level 12 and the equipment uses 3 types of materials.

 - OBDUCITE 

 - INGOLITH

 - NEATHIRON

From level 1 to level 4 you use OBDUCITE

- LEVEL 1 = 10 OBDUCITE + 100K GOLD

- LEVEL 2 = 20 OBDUCITE + 150K GOLD

- LEVEL 3 = 30 OBDUCITE + 200K GOLD

- LEVEL 4 = 40 OBDUCITE + 300K GOLD

From level 5 to level 8 you use INGOLITH

- LEVEL 5 = 20 INGOLITH + 400K GOLD

- LEVEL 6 = 40 INGOLITH + 500K GOLD

- LEVEL 7 = 80 INGOLITH + 600K GOLD

- LEVEL 8 = 120 INGOLITH + 400K GOLD

From level 9 to level 12 you use NEATHIRON

- LEVEL 9  = 50 NEATHIRON + 800K GOLD

- LEVEL 10 = 100 NEATHIRON + 1M GOLD

- LEVEL 11 = 150 NEATHIRON + 1,5M GOLD

- LEVEL 12 = 250 NEATHIRON + 2,5M GOLD

Now that we have saved the materials and how much we spent on each of them, it is necessary to understand how to farm them the fastest.

In the alchemist's shop it is possible to exchange materials, exchanging the highest material for 3 of the lowest. That is, 1 NEATHIRON is equal to 3 INGOLITH and 3 INGOLITH is equal to 9 OBDUCITE.

So we can say that 1 NEATHIRON = 9 OBDUCITE

Now let's go to the part that I sell:

5X RUN PIT 101 = 300 NEATHIRON OR 900 INGOLITH OR 2700 OBDUCITE (TIME 30 MINUTES)

10X RUN PIT 101 = 600 NEATHIRON OR 1800 INGOLITH OR 5400 OBDUCITE (TIME 1 HOUR)

25X RUN PIT 101 = 1500 NEATHIRON OR 4500 INGOLITH OR 13500 OBDUCITE (TIME 2 HOUR AND 30 MINUTES) -- PAUSE IF YOU NEED

All your equipment at 4 you will need approximately 5 Runs.

All your equipment at 8 you will need approximately 20 Runs.

All your equipment at 12 you will need approximately 110 Runs.