Whenever you cast a historic spell, investigate. This ability triggers only once each turn. (Artifacts, legendaries, and Sagas are historic. To investigate, create a Clue token. It's an artifact with ", Sacrifice this token: Draw a card.")
Doctor's companion (You can have two commanders if the other is the Doctor.)
Sarah Jane Smith turns a historic-heavy mono-white shell into a Clue factory, generating card advantage off legendaries, artifacts, and Sagas you'd cast anyway. Early turns build an artifact/legendary engine, the midgame converts Clues into refueling and ramp, and you grind opponents out with token swarms, equipment, or stax pieces backed by superior card flow. As a Doctor's companion she pairs with a colored Doctor to splash into stronger draw, ramp, or combo lines.
Repeatable card advantage in mono-white, a color starved for draw
Cheap, hard-to-answer commander that fuels itself on otherwise-castable spells
Clue tokens feed artifact synergies, sacrifice payoffs, and improvise/affinity
Doctor's companion massively expands strategic options into other colors
Only triggers once per turn, capping raw card flow
Clues cost each to crack, demanding lots of mana
Mono-white (without a Doctor partner) lacks ramp, removal flexibility, and combo
Low impact body that does nothing to protect the board by itself
A historic Saga that triggers investigate while tutoring artifacts to feed the engine.
Add a colored Doctor partner (blue or black) to unlock real draw, ramp, and removal that mono-white lacks. Lean into token doublers (Anointed Procession, Mondrak), Clue-multiplying engines (Academy Manufactor), and free historic spells to push the investigate engine, then add fast mana like Sol Ring and Smothering Tithe to actually crack Clues each turn. Tighten with efficient tutors and a compact combo finish to convert the card advantage into wins faster.
Legendary Creature — Human Detective
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