Tamiyo's Journal

The flagship Investigate card, and the one that turned a flavor mechanic into an engine. Most Clue-generators hand you a single token off a creature dying or entering; this one ticks every upkeep with no trigger condition and no creature required, and it converts those Clues into something far more dangerous than cards drawn one at a time. Three Clues sacrificed becomes a tutor: any card from your library, straight to hand. The book keeps two payoffs in tension. The slow plan is to sit on Clues as a backlog of cantrips, cracking them for two mana whenever the game stalls and you need a fresh card. The fast plan is to hoard three and fetch the single most important card in your deck, then do it again as the Clues refill. That second mode is what gives the artifact its weight: an upkeep-fed engine that, left alone, eventually finds whatever the game is missing. The five-mana price is the real brake, and the pace of the backlog is the second: it produces nothing the turn it resolves, and the tutor ability taps the Journal and demands three Clues, so the first fetch waits on three upkeeps of accumulation. The legendary supertype reads as flavor here rather than restriction; few decks ever wanted two. It sits between card advantage and card selection, refusing to be only one, and the choice of which Clue to crack and when is the entire game the Journal asks you to play.