Rabbi Yishmael B"R Yosi cursed those who would imitate a legal method which Rabbi Chanina alone could practice properly, with Askera Disease: Niddah 20a-b
Considering the act of cursing another person, using Gd's Name, a deed-less violation, regarding the possibility of punishment in a human court: Makkot 16a; Temurah 3a, 3b-4a