Noticed that when Law used Room he mentioned "Tact", which I could assume means to lift things. Notice the finger he used, he used the T in Death. Do you think each finger with a letter has a different effect inside Room?
I thought the same thing when I remembered that scene. This is post time skip though, power inflation is already showing itself, and something like what Spiegel suggested isn't out of the realm of possibility.
If Law can do this imagine Kidd and his electromagnetic field ?
Lifting islands incoming.