* MyRealDaddy: Though the Jack Kirby series is still held in fair regard, Len Wein, Alan Moore, and Neil Gaiman created the idea that Etrigan RhymesOnADime, and the idea of him as TheTrickster rather than simply evil.
* PainfulRhyme: In a case of a not so poetic writer.
** WordOfGod says Etrigan does this intentionally sometimes, as part of his EvilIsPetty angle.