I'm fine wendy learned more enchant skills while was in irene body and can be explained how she was able to nechant dragonslayer magic to weapon even for 1 strike, I'm fine with erza destroyng whole meteor even with no bones left to use, BUT i'm NOT fine with her survival asspull bullshit, i'm NOT fine with irene stabbing herself or about her Regrets, Being PURE villain is fine, instead stabbing herself acnologia should had jumped and crushed her.