Here are the five scenarios (which I changed to seven :P), and my answers to what should happen. I will check my answers with the codemasters at New York Comic Con this weekend, and I will give out prizes afterward. If your entry wasn't chosen, it was probably because you didn't leave your username with your post. I know that it may seem like I have had the time to mull over the questions, but I promise that I started looking at these at 7pm today :P.
"In iron pillar Lord von bloot uses
canon of casualty on engaded intress to counter intress sacrifices her aqua shield
what is the difference before the attack of Lord von bloot?"
-First off, Intress wouldn't be able to sacrifice her battlegear because of the location, so all 20 damage from canon will be calculated. Nice try :P.
"So Prince Mundeenu OLD faces off against LVB in a 1vs1 LVB location is flipped and its gothos tower. PM is equipped with a Spectral Viewer and LVB with a destructozooka, he chose fire. LVB attacks first with an ash torrent dealing 25 damage. PM then uses Fanfare of the Vanishing. PM now attacks with Quick Exit (We assume he wins the challenge)how much damage does he deal.""
-Now this is a good question! I actually had to consult my comprehensive rules to get a good idea. It is pretty much a question of if spectral viewer will stop opposing invisibility from negating your invisibility. I believe that mudeenu's invisibility will work, and he will deal 45 damage (20 from strike, 15 from fanfare, and 10 from the attack).
3. Todd Hakusho -you didn't give me a username, but I have your blogger username, so that is close enough :P.
"Now, if you use Najarin Fluidmorpher's Foe to attack another Najarin Fluidmorpher's Foe, and your card gains a Mugic, will this turn continue on into infinity?"
-No, it wouldn't. The way they worded Najarin's ability as "place" a mugic couner on him will prevent him from triggering against himself.
"If a creature uses Canon of casualties on Glost and Appelai uses song of deflection. Does Appelai gain a mugic?"
-This is another good question, and I might get this one wrong too :P. I am going to say yes, because Appelai is worded as " When a Warbeast you control becomes the target of a Mugic or ability". I believe that because of that when, as soon as your warbeast is targeted, Appelai triggers, so even though it wasn't the target when the canon resolves, Appelai's ability will still work.
"Lets say you were facing BigPanda's nimmie. What is the maximum amount of stats and energy that Nimmie could gain?"
-This isn't really a situation, more of a hypothetical. I couldn't tell you what the maximum is, because the maximum will depend on your opponent having a deck that would actually help your Illexia, it wouldn't make much sense to go looking for it :P.
"I pull Trills of Diminution on Fivarth with Challor. Would that work?"
-Nope :P. You wouldn't be able to play Trills of Diminution because Fivarth can't be targeted to begin with.
"Anger'Kreem is Batteling Chaor (or any other creature)and it has 4 mugic counters. Anger use Swarming Destruction (who should do 0) but use is ability to do 25."
-No, the Swarming Destruction's dealing 0 ability will supersede Anger's ability.