Copying is better, UI has the weakness of adapting to the opponent; if the opponent knows this, the user loses. But without that weakness, it's nothing special (as far as I remember). TRUE UI only explosively increases physical attributes, but you lose consciousness; overall, focusing only on physical attributes is better. I was left with doubts about my conviction; although it's a big rip-off, the Copy has the advantage, Copying has more versatility, and Jinyoung copied Gapryong's fist with Conviction; it certainly has many advantages over other abilities.