Angelic Purge can help you trigger “Whenever you sacrifice a Clue…” abilities.

Have you got a clue? If you haven't, then you probably need to start Investigating. Shadows Over Innistrad brought us investigating and clue tokens, a little twist on normal cantrips. Instead of getting your card right away, you get a token that you can sacrifice later on for a card. And there's even some cards that give you bonuses for the clues you sacrifice. Cards like , who transforms when you sacrifice a clue, or , that gives you life when you sacrifice a clue. But it's not just sacrificing

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