Few days ago I informed you about two different abilities with the same name. New gifting event is out and now we have another abilities with the same story.

  Kiss of Death Offensive 35/35 (Lilith Event)

  Kiss of Death Offensive 109/52 (Santa's Little Helper Event)

There is another Kiss of Death ability in iPod version of the game:

  Kiss of Death Defensive 28/32

The Kiss of Death is another name for the kiss given by Judas to identify Christ to the Roman soldiers. The term "kiss of death" is quite often used in English speaking Western cultures as an idiom or metaphor for ruining or spoiling something.