Can’t figure out how to reproduce or anything, but sometimes the “Lucky I” award for surviving Deathmark appears on the MVP screen despite having no Deathmarks being given out… even in cases when there was no possible way for an Deathmark to be given out (no spells or traits available to do so).
For example, I just earned this reward after defeating this team:
(I promise my team had no method of giving me Deathmark either)