Fleeting Memories

R3.08

“If you sacrifice a Clue to pay the cost of a spell or ability, Fleeting Memories’s second ability will resolve before that spell or ability.
The token is named Clue and has the artifact subtype Clue. Clue isn’t a creature type.
The tokens are normal artifacts. For example, they can be sacrificed to cast Angelic Purge or targeted by Root Out.
If you sacrifice a Clue for another card’s cost or effect, such as that of Angelic Purge or Tamiyo’s Journal, you can’t also pay {2} and sacrifice it to draw a card.”