is lilis susspose to be able to kill other evils
In the top left shows how many evils have been slain and how many are in match.
If the slain evil number rises when a unrevealed card dies by Lilis, than safe to assume that Lilis has just murdered a evil.
But do remember that Lilis prioritizes in murdering good characters, so the likely chance of seeing it is if there is 1 card left.
Lilis kills a unrevealed card, prioritizing good characters first, if there are no unrevealed good characters than Lilis will target a unrevealed evil character instead.
For extra detail, if Lilis is the last unrevealed card remaining and it's moon card play, she will not attack as she cannot kill herself.