I changed. That's the final piece. All those struggles, I learned from them, and I grew!...

Spinel:

You know, I came here to take my anger out on a bunch a' strangers. But now that I know you, I wanna kill you even more. [She loosens her grip on Steven, holding him only by his jacket sleeve. Steven's gem glows a moment, but still does not work] Steven Universe:
I don't get it! Spinel:
Huh? Steven Universe:
Why aren't my powers back? Aren't I reliving every horrible thing that's ever happened to me? A gem I barely know is trying to kill me. I'm paying for something my mom did that had nothing to do with me. I'm struggling with my powers, the world's about to end! What piece could I be missing? This is the story of my life! Spinel:
[laughing]
Wow! I knew I was gonna set you back, but THIS is how you started? The legend? Steven Universe? Hahaha! You gotta be kidding me! How did a powerless loser like you become savior of the galaxy? Steven Universe:
[a pause, then]
I changed. That's the final piece. All those struggles, I learned from them, and I grew! Oh, my gosh. It's not just my gem powers I've forgotten. All this "happily ever after" stuff has made me forget the first power I ever had. The power to change! [His gem glows bright. Spinel drops him, but Steven floats in the air. He's back]