These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Badass Decay: Sabine after Clover hits him with a car while he was frozen solid. Also Ezra could move buildings with his mind in book two, but in book three, the biggest thing that he can control is grass with which he kills Sabine. This is Badass Decay for them both. Justified with Ezra though because he uses the power of dreams and dreams are weakening.