User blog comment:FairyRaven/Fairy Tail vs. Alvarez Empire! Place your bets!/@comment-24553184-20150917214724/@comment-24553184-20150918032028

@FairyTailFan

True she does seem mediocre to some but Mashima on twitter confirmed before the Beginning of Tartarus that Cana is the 3rd strongest Female Mage in Fairy Tail, so if she trained hard enough she could still keep her ground. Her endurance is good, she also has incredible strength to fend off Elfman and lift those barrels. She only seems mediocre cause she hasn't fought as much, but she took on Freed twice, and showed pretty good skills, water magic = to Aquarius at the time of tenrou island, and was able to tank and shrug off those three combined mages. I know a lot of people don't pay attention to her as much XD but she's actually got some pretty impressive things if you look back. Not to mention she has more shot being in there then Levy and Lisanna who people seem to put in instead of here. She was on Team B before she got FG the second time, and FT seemed to be pretty sure she's score pretty High Either way. We've yet to see her as of the Time Skip too XD

Sorry if that seemed like a rant, TLDR version Cana has some pretty good stuff if you go and look back, she's shown better then Levy and definitley Lisanna