MArcomage

I think there are a few too many unknowns involved for this card to work. Is it based solely on Attack value? If it's used after a card that has no Attack value but tower reduction, would it inflict the tower reduction? Would it inflict Charge damage? If so, would that require that the opponent's wall be low enough for it to take? The simplest way to work it would be if it was based solely on Attack value, but then it would have to directly reference the previously played card, and I believe Mojko's stated before that that's impossible. If it was based on damage received, it would probably have to be reflected as Attack, even if the damage had been dealt to the tower and not the wall.

Also, I believe the word "neglect" was meant to be "negate" as in "undo," right? That is, it would function like Master of the Past but only for Attack.

I did not describe it very well.
Basically what i had in mind was to return opponent's damage on your wall to his/her wall and damage on your tower to his/her tower. For example, if A tower=30, wall=10 ; B tower=30, wall=20. B played attack 10(7). A would be tower=23, wall=0. If A plays return the favor, then B would have tower=23, wall=10.
Scenario 2: A tower=30, wall=20 ; B tower=30, wall=5. B attacked A with 20 damage, then A would be tower=30, wall=0. If A plays return the favor, then B would be tower=30, wall=0. The extra damage would not go to tower.
I did not follow every one of Mojko's post, so i m not sure if its implementable. And yes, I meant similar effect to Master of the Past.

It's much more clear now. =D