Other than using the card crafting station or creating a treasure card while in a battle, is there a way to create treasure cards? Also, can more than one enchantment card be used on a card while making them into treasure cards, or can you only increase either the accuracy or power of a card while making it into a treasure card? I have asked this question to a few people and no one seems to know the answer to it.
Oran Thunderblade, Lvl 50 Life Grandmaster Oran Deathblade, Lvl 48 Sorcerer
Considering that those enchantments can only be used on a deck card, and that using a enchantment on a deck card immediately changes that card into a treasure card, then I would have to say "No, you cannot use multiple enchantments on a card."
And No again to your question on making a treasure card. You either craft one, or enchant one.