And that's the point the glowing ribbon Noa's holding pops back into Con, squinting at Gon dubiously (although he already looks like that).

Obviously, Con says, in his case he literally takes the form of Noa's weapon. But if he has a partner, he should also be able to help them understand their abilities and draw on the full power of their Spark! Does Gon already know what his partner's Spark is?