Thread:DinoKev/@comment-98.70.74.189-20120801061245/@comment-5012038-20120801062540

For the epic boss you will need the nemesis card of the boss and high attack cards. They'll do more damage.

To level up cards, I would suggest you not to level up any N or N+ cards but instead, save your brains that you got from quests and trade them for good cards. The order goes like this from best to worst: S+ > S > R+ > R > N+ > N so try to get some good R and R+ cards like Panther first then level the good cards up with all your N cards.

If you're worried that other players will steal your tokens, bank them and you don't have to worry about being attacked. For gems, set traps on them but if someone stolen it because you've lost to their high level N child cards, you can easily get them back when you've got good cards.