The cat says "That's Erza for ya" 'ya' is a slang shortening of 'you', for example if you say something like 'didnt you know that?' very fast, it can sound like 'didnt ya know that?' When we say "That's XXX for you" it is usually a sarcastic saying, meaning someone just did or said something very typical of that person. So my name is Widette, and I drop my phone a lot, its always cracked. So if I dropped my phone AGAIN, one of my friends might say 'oh my god thats widette for ya' to our other friend. I am not familiar with this show, but if Erza is a very controlling person, and she is being bossy again, the cat will sarcastically say 'thats Erza for ya' kind of meaning 'you shouldn't be surprised, she always does this'