Blink...how to prevent exploitation?

Anything i should know about the blink ability to prevent players from exploiting it in campaign maps? like, tricky tile placement, etc...

Add anti blink regions and set trigger for each region?

You cannot "blink" to an area covered by the Fog of War (only this one gives you an error message). And of course you cannot blink to areas that the pathing wont allow (water, on top of buildings, out of the 'playable map area', etc...) (these just teleport you to the closest location)

Hey how ya doin'? This is my first time posting and it's to answer a question so take the advice I give you with a grain of salt. After all I'm a noob here. If you don't want someone, say, blinking inside of a cell to rescue a prisoner before they find a key can't you just place a doodad called a pathing blocker? You can even write a trigger to kill the pathing blocker later, I think. I hope that helps.

Line sight blocker will do too ;)