Wisps dieing....

This sounds stupid, but here goes.
Do wisps make invisible corspes (for the purpose of refrence in-game or something)? Like if enough peasents were killed (if a peasent was used for dummy casting, and was invisible, etc.), then wouldn't those corpses build up lag? So would a wisp do the same?

I believe in a way, yes, they do. But my suggestion would be to not worry about whether or not they do or don't and just try to clean it up anyway, since it doesn't hurt to do so. You could, if you wanted, change the Wisp death so that they can be raised, but since they don't have a decay animation or any art supporting it, you wouldn't be able to see the corpse.

You can clean up units by:

Just add expiration timer

You can set a unit property in the object editor so that the unit doesn't leave a corpse behind. Also, I think that units that die due to an expiration timer don't leave a corpse anyway.

It dosent leave a corpse anyway.
If you try to Necro them back to life (with the undead unit), it never happens, their is no corpse to be revived.

Just set them to "Cannot raise, Does not decay" in teh object editor. Now they don't leave corpses.

ok... I used wisps as my dummy unit for their lack of... well anything compared to other worker units. I use generic exipiration timers on them, so they won't leave corspes I assume. Good to hear. :D thanks.