User blog comment:Leek0421/The strongest Female Fairy Tail wizard/@comment-96.24.244.24-20150515145206/@comment-68.179.188.168-20150518001042

Actually that's false Cana has shown a few things without Cards and she has never lost her cards XD, she can recall them it seems.

Here's the tweet about Cana https://twitter.com/hiro_mashima/status/297732624749834241

See two years ago that was around when Future Lucy was first introduced