On Big Game Hunters map you can warp alot of shield batterys right in a empty base next to your enemy has long has you do this quick and or your enemy isnt useing a maphack or isnt have a million Observers/overlords around

you can keep attacking him with the same carries/scouts and just run back to the empty base and charge shields up turn around and run back and forth. when i first used this on my friend he called me a dirty rat basterd :-P dam batterys finnally found a good use for them

CreepColony's Opinion: Good for high shield units, like archons.