Warlord beats Troll, Troll beats Elf, Elf beats Water Sprite, and basically everything else beats Enchanted Bunny.
I'm up to 12 decks now and decided to come up with a storage option. I do not own the starter set and just went with decks and substitute tokens.
I went to a local card shop and looked at many box options. They had everything under the sun for card storage. I ended up going with a clear Ultimate Guard Stack 'n' Safe Deck Box that holds 480 cards, and removed 2 of the 3 clear dividers that were included.
I was able to fit 12 sleeved decks comfortably using Mayday green standard sleeves. I use the Ultra-Pro card dividers and trimmed about a half inch so they would fit under the lid.
I then measured the lid and created a custom image that I printed and affixed to the lid with double sided tape. I also added some additional elements to the image in order to make it unique apart from the core rulebook image. I sealed the edges of the printed image to the lid with clear Elmer's glue to prevent wear on the edges of the image.
I decided to go with a clear storage box because I like the look. Makes for a nice conversation piece when it sits on the table. I will be getting more decks of course, but I will also create a second box for my 13 year old son as he builds his collection because he has really taken to the game.