Put a max on the number of units targeted by the search and then make the target sorts prioritize units with the buff applied by the vortex.
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Considered easy altering of the unit textures?
http://static.sc2mapster.com/content/attachments/15/252/Screenshot2011-04-17_09_16_21.jpg
For my public assets look here!
http://www.sc2mapster.com/forums/resources/data-assets/46733-the-assets-of-evil/#1
Kabelkorven AuthorIs it possible to make Vortex only suck in a amount of unit?
For example, when 16 units have been sucked into it, it does not suck anymore units. So other units can walk over the Vortex like a sunday walk.