Board Thread:General Discussion/@comment-123.243.81.156-20140513014949/@comment-24895014-20140513030927

Drop any card with:

less than 200% Defense boost

1 turn stuns

+EXP% (you'll be better off using slimes and N cards if you are out of room)

less than 20% passive attack boost

Also if you have 250% attack to all enemies, get rid of % attacks to single targets, this does not include critical attacks.

Keep an eye out for cards that are identical in skill, but one has more proc, keep the better one.

Lots of 'near defeat' cards can be junked as well. Most of the 'at battle start' can go as well.