{@R} Teysa, Opulent Oligarch (Showcase) (0321) [Murders at Karlov Manor][MKM 321]

Deathtouch
At the beginning of your end step, investigate for each opponent who lost life this turn.
Whenever a Clue you control is put into a graveyard from the battlefield, create a 1/1 white and black Spirit creature token with flying. This ability triggers only once each turn.