User blog comment:Buiquangduy/Bernkastel/@comment-112.211.192.136-20130824092752/@comment-112.211.192.136-20130824151201

Death, or any other method of removal from the game, is the same thing in the metaworld sense. Removing things from the "board" by fiat, whether they actually die or not, is decidedly not Bernkastel or her domain.

Also, you need to really need to actually read all the novels/games. Or at least watch the anime more carefully, as there are some hints there. Do you realize what Battler's main skill is, prior to becoming the Endless Sorcerer and the Game Master himself? It's officially called Resurrection. In addition, all the Witches are either explicitly described as being able to play with lives and time, with one particular Witch (Maria) being able to even create new life from nothingness (hence Sakutarou).

At any rate, "removal" is a poor choice whatever way for Bernkastel. It sounds like Beato out of boredom made a clone of her and assigned some random ability (which she has already done with other Witches). Bernkastel's main themes, consistently and strongly implied if not outright stated, are Miracles and Continuation. Ending the game by forcibly removing a piece, be it by death, random decree, or "letting go", not only violates her core identity, but the rules of The Game.