A drokken could easily be subdued/killed by introducing thromite into its system. According to Landok, besides thromite, only a powerful blow could kill them, as they were impervious to most wounds. Angel managed to kill one by sticking a sword through its throat.
- "Over the Rainbow" (Only in visions)
- "Through the Looking Glass" (Only mentioned)
- "There's No Place Like Plrtz Glrb" (Only mentioned)