If you want to fight false gods, I'd recommend making a deck like on this thread (
http://elementscommunity.org/forum/index.php/topic,6546.0.html).
You have 2 Lobos which is a good start, though I think 3 is optimal. The only cards in this deck that you have to have upped are the Ray of Lights. Of course upping the other cards helps, but the deck is quite viable even without the other upgrades. Another thing to consider is adding some Shards of Gratitude to that deck. It slows the deck down a little (causing you to lose sometimes from it), but that is somewhat offset by the ability to win against some other gods as well as get Elemental Mastery sometimes.
I know this sounds painful, but the fastest route to winning upped cards and electrum is probably to sell as many Aether Towers as you need to in order to upgrade those Photons to RoLs. But don't worry, you'll get the electrum back pretty quickly. Good luck.