If a player has a Nydus Canal, can he send units other than zerg units into it?
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Test this yourself. It would take less than 5 minutes....
But the answer is no.
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No. Are you trying to invoke a teleporting system of some kind into a map? I'd be more then happy to give you some suggestions if you really need something similar to a nydus.
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Well, if you need some help or ideas feel free to ask, but give some information about your map as you do so - that way I can help to best visualize the most appropriate set of triggers for your specific needs.
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