Pretty sure it's under the DnD System Reference Document (SRD) in which people can use the copyrighted material and incorporate it into their own campaigns. SRD is under the open game licence
Now that he was versed in Inferior Fireball, his level had increased, and he even got an unexpected Backpack, Roland focused his attention on another level-one spell: Hand of Magic.
Games · Soaring Flames
Bro, it's Khadgar the author is copying WoW
"Greetings…" Lin Yun politely greeted him while pondering what he knew about this person. He had actually heard the name of Black Horn Auction House's Chief Appraiser, Cadgar, quite a few times.
End of the Magic Era
Fantasy · Zhuang Bifan