How about the ironite return of this dungeon?
Did not have the time to start just yet, but if my math is not wrong, you need around 500-600 runs to get both T3 talismans. That's 7200-9000 SoT
I guess the dungeon will drop some ironite and SoT, any guess about how much? Is one megarefill enough for running 2h with the average times I'm reading here.