
When Nyla enters, exile up to one target creature card from your graveyard. If you do, you lose X life and create X Clue tokensClue tokensA Clue is an artifact token with ", Sacrifice this token: Draw a card.", where X is that card's mana valuemana valueA Clue token is an artifact with "
, Sacrifice this token: Draw a card.". (A Clue token is an artifact with "
, Sacrifice this token: Draw a card.")
At the beginning of your end step, if you control no Clues, return target card exiled with Nyla to its owner's hand.
Hover an underlined rule to see what it means.
Read from the rules text. A card that enables a keyword makes or is the thing; a card that rewards it gets better when you have it. Two cards interact when one enables what the other rewards.