Follow the Path

Investigate. Then scry X, where X is the number of Clues you control. (Create a colorless Clue artifact token with ''{2}, Sacrifice
this artifact: Draw a card.'')
Reverberate (Exile this spell as it resolves. The next time you cast a spell that shares a type with
it, you may return this card from exile to your
hand. It costs {1} less to cast until end of turn.)