It wouldn't break the game, since it'll only affect small (thralls, shanks, acolytes, etc.) to medium (knights, captains, minotaurs, etc.) enemies (major and regular) and [b]not[/b] large enemies and ultras (ogres, bosses, etc.). In PvP, no one would be dumb enough to walk into it or go near it, and if it was around the corner and you walked into it, that's your fault. The tornado itself is large, loud, and bright and if there a Sunbreaker super nearby (you'll hear it across the map) you'd likely not be nearby anyways.

I'm talking range and amount of suction.