I will list below some crazy bugs created in map development process :D
2.4 version:
-When you reach wave 100 it will continue loop and spawn ultimate monster each new wait time
(Explanation: Ultimate monster will be spawn each few seconds, one has above 10.000.000 hp and 100.000 damage, imagine 5 at same time ^^) -Roar bash system can destroy pathing blockers
(Explanation: When roar ability for warrior druid reach level above 10 it can push units over 1000 or more points, destroying even pathing blockers, that means that units can move on cliffs or water)