I don't actually remember that scene*. I do remember lots of Edward crying over his 17-years-ago dead girlfriend though!
*I probably don't remember many TAY scenes at this point
It's not as awesome as Edward fans would make you think. Oh sure, sounds cool until you realize the plan isn't well thought out at all. Kain is clearly stronger than Edward, if Edward is to survive such a move, Kain would definitely survive it too (and he does.) The plan has this "OMG THAT'S AWESOME TAKE THAT!" thing but then...it does absolute jack squat to prevent the outcome of the scenario, and it's not in a typical "Maiden is a Villain Sue", or "Kain fan-wap" but just general Edward trying to be badass and failing in some very basic ways. Again, he relied on ROSA as a contingency back up plan, and all this ended up doing was getting her kidnapped.
I think the best way to illustrate the failure of Edward's BRILLIANT PLAN!!! is through the results of it:
-A charred castle
-Dead ZOMBIE Guards
-Baron Queen gets Kidnapped
-The Fire Crystal, the #1 priority you were intending on protecting, gets taken anyway
Take off the shallow factors and you realize just how bad Edward's plan is. And to think, he could have fixed the entire scenario by just MOVING THE DAMNED FIRE CRYSTAL from it's most obvious of locations.
I'll give him props for the Whisperweed thing. That was actually well thought out and executed (and it succeeded in it's role at that); the "Set Castle on Fire" plan? He played his trump card without, you know, actually using his other options first.