There is no other way to get it in the game at present.
Luke raid-ancient weapon upgrade:
Shengyao redemption weapon online
Upgrade requirements: 150 refined space-time stone, 128 magic stone, 500,000 Antoine nerve cells.
The task of extracting nerve cells from Antoine
Collect 3 [Antoine's Blood] through Antoine's team mode.
Approaching the philosopher's stone
1. If you win through Luke's book, you will definitely win two philosopher's stones (and additional gold medals: philosopher's stone, 90 pink cards, 90SS, 85SS) on the second flop.
2. Find NPC through the root of darkness in exchange for one of the five roots of darkness.
The Dark Roots Luke Group won the flop at this stage (repairing an epic soul and some dark roots).