I found this while camping on the zeppelin tower of Grom'Gol.
I put See of Corruption on a lowbie horde and he ran off to where the blacksmith is, when it detonated he got aggro from the NPCs and they killed him. It couldn't have been me since I only had time to get the SoC off nothing else.
I tested it a few more times and it worked 3/5 but those 2 could have just been that the explosion missed the NPC slightly, have fun with it.
TLDR: Seed of corruption on lowbie near NPCs.
Seed goes boom, lowbie gets gibbed.