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Hero card
Bite Down on Crime
Sorcery
SpellUsed once: what it does depends on when you cast it
Needs: Valiant
Gives: Clues, Spells
Not in winning lists yet: read from the card text and the graph
Makes it work
Emberheart Challenger · Whiskervale Forerunner · Veteran Guardmouse · Nettle Guard · Mouse Trapper · Whiskerquill Scribe · Seedglaive Mentor · Flowerfoot Swordmaster
Benefits from it
Evidence Examiner · Persuasive Interrogators · Teysa, Opulent Oligarch · Surveillance Monitor · Lazav, Wearer of Faces · Primeval Bounty · Quandrix, the Proof
Use instead if you don't have it
Map the Frontier · Planar Engineering · Reach the Horizon · Circuitous Route · New Generation's Technique · Vicious Rivalry
Cards in the meta that answer it
Countersculpt (Azorius Control) · Inevitable Defeat (4-Color Control) · No More Lies (Azorius Control) · We Say Thee Nay! (Dimir Aggro)