Talk:Ryougi Shiki (Saber)/@comment-29543192-20161110163602/@comment-24.86.13.0-20161113072431

There's also a "hit" percentage for the enemy as a hidden stats, determined by the server end.

So even if you reduce the death resistance to 100%, the boss servant/enemy that has a 1% or 0.1% hit chance will still make it extremely hard to land an instanct kill (1 x 2 = 2% or 0.2 if it was 0.1% hit)... not impossible, but EXTREMELY rare.