Well, I don't want to give away too much about strategy, but next war, pendulums should count as cards for both the element it is and your mark.
E.G, if you're time, you can't take 15 time pendulums, 6 frogs, 6 adrenaline, life mark, and three eternities.
Decks like this:
5of 5of 5og 5ol 5pu 5pu 5pu 5pu 5pu 5pu 5pu 5pu 5pu 5pu 5pu 5ul 5ul 5ul 5um 5um 5um 5up 5up 5up 7ta 7td 7td 7td 7td 7td
(no offense)
Aren't air decks. That's a darkness deck that air took to be sneaky. It shouldn't be allowed.