Speculate How This Spell Was Made

Level 24
Aug 1, 2013
Camera indeed to a value where fog covers the field... I can imagine that 5000 is not enough in some cases but it should work on normal maps.

Give units crow form and set their height to... a lot and attach some special effects to them.
Maybe make some locusted units and attach the effects on those if you want to be able to rotate/move the units.