Given that Jiki has the power to control and manipulate magnetism, as well as the large number of non-stackable metal items, it would make sense and be useful if the user could use metal in nearby inventories or on the ground for attacks as well.
What I mean by this is that not only should Jiki's metal count show the metal in your inventory, but also metal within however large the range of this will be, so probably the range of the attract/repel moves, but ALSO if there is, say, a dropped marine sword on the ground 3 blocks from you (or anywhere within the range) you should be able to utilize that when performing your moves.
This is sort of a big buff for jiki but at the same time it just makes sense to be able to do this, no? I mean if I can pull the iron blocks to me from like 50 blocks away, then I should be able to make them circle around someone without holding them in my hands/pockets.