Those three were dirt poor!
In total, he got 84 high-grade mana essence stones, 70 high-grade chi essence stones, and 93 high-grade prima essence stones.
Aside from that, there were roughly 4k energy stones. Arkhen rarely used energy stones since his main two energy sources, Primal Pool, and Chi Pool, were unlimited. So he never had to use energy stones to recover his energy mid-fight or use potions.
But he indeed needed energy stones to buy general ingredients in his practice for Alchemy in the future and also for other things.
Unlike essence stones, energy stones were universal as they could recover all types of energy. They also had low, mid, and high-grade levels. The energy stones he got from those three Dark Shadow Tower members were high-grade energy stones.
They also had some pieces of equipment, two accessories, a few pills, potions, and such things. These things were useless to Arkhen, but he decided to sell them after returning to the sect.
