Is it up to the attacker and defender to decide where to allocate their damage among battling units? Example:
Bob is attacking Joe's Kingdom.
Bob has 2 attacking unit cards: Card A has 5 power and 6 HP, card B has 2 power and 3 HP.
Joe declares both his cards as defenders: Card X has 3 power and 5 HP, card Y has 1 power and 3 HP.
Can Bob choose where to assign damage amongst cards X and Y? Could he choose to "wipe out" card Y and leave card X damaged, or the other way around? Or, does Joe get to choose where it goes since he's defending?
When Joe then assigns his damage to the attacking units, can he choose which unit to assign how much to, or does Bob get to choose that?
If this scenario is not the case, then in what order do you assign damage to units? Weakest first, strongest first, or some other way? The rules state that the untis attack and defend as a whole, not as indiviudals, but I am kinda confused on this one detail.