The Ultimate Book of Spells (2001)

S1E9 Once in a Blue Moon

Zarlak has taken captive all the Charmlings, the tiny elf-like beings known for their ability to fulfill wishes at will. With the ""Ring of the Blue Moon"" in his possession, a magical item that can grant any wish imaginable, the responsibility falls on the trio to retrieve it and save the Charmlings before Zarlak can use its power for his own nefarious purposes!