The environment under the lake was completely dark. Angor quickly constructed a hexagonal model in his mind space and triggered it using mana, bringing out a bright sphere inside the Purification Field to illuminate his surroundings.
Level-0 cantrip—Light.
During these two months, he learned many common cantrips, including this one, which he always considered useless before.
This only function of this cantrip was to create light. It wasn't bright either. It only allowed people to see an area about two or three meters around, like a small torch. But while a torch couldn't work underwater, Light could.
There was actually an advanced version of it called "Blaze" which could brighten up dozens of meters around its user. It was a level-1 cantrip that required certain knowledge and long-term effort, and Angor didn't plan to learn it yet.
Using his cantrip, the cold and dull water under the surface finally became a little clearer.