Heavy knight doesn't work against falkow, I have tried running him before.
What falkow does is, Leave heavy knight alone then cast return on ex lap. After thats done.
Heavy knight self engages and is beaten down to half life by sissy WK units on field. Can't even standby or anything. As Aoi pointed out, Jade Carbuncle does exactly same thing but better, it have an tendency to murder a unit for self engaging. And isn't even counting the fact that Ex ruby general have a aoe heal.
Then heavy knight dies in following turn.

