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A higher race of lamia. Like their cousins, echidna have the upper body of a human and the lower body of a snake. Their extraordinarily powerful magic sets them apart from the other lamia races. Their personalities vary between individuals, but the one common factor is their extraordinary libido.
Very few in number, they make in the deepest parts of perilous dungeons and seldom appear in the outside world. On the assumption that anyone powerful enough to reach their lair is worth having a child by, echidna scatter treasure about their home dungeon to lure humans toward the center.
With her powerful magic, an echidna will disguise herself as a human and spread rumors about the riches to be found in her home. When a desirable man makes his way to the core of the dungeon, the echidna seduces him. If she is particularly taken with him, she may decide to keep him. When her new consort emerges from the dungeon, he will have a heroic tale to tell. But the story will be false, and the woman at his side will be the echidna.
The echidna possesses a power unique among monsters. The first child born to an echidna will be of the same kind as its mother. However, the later children will be of various types, appearances, and personalities, seemingly at random. Though it has not been confirmed, scholars believe this is where many monster races come from. This ability is why the echidna is known as the Mother of Monsters. They seek out superior men so their monstrous children will have superior abilities.