Well if we're being serious if he really had to fight, it'd be a few minutes of
>>100975278Then he'd try to fight the other guy to a standstill.
Now, we know Steven isn't a complete weakling. He himself is getting that alien strength, so it stands to reason that he's stronger than the average man. He still gets tossed around by those who are stronger than him, however, so most of the battle, he'll have to play defense.
Which is good, because Steven is, as we've seen, very good at defense. even as an inexperience whelp, he blocked fire from an alien ship that could cleave an area of land in two, and he did so with relative ease. Both his shields are able to take force from far stronger foes, as we've seen with his fight with Bismuth.
But bar none, Steven's best offensive tool is his Watermelon Clone no Jutsu. Individually, they're stronger than he is, but as a horde, they're able to do shit like overpower the Crystal Gems with sheer numbers. If Steven gets enough prep time, and enough watermelons, he could take on a foe many times his own strength.
So I'd say someone like a street level Marvel Hero would be the best he could do if he had a shitload of watermelons.