Arcane Foundry › Commanders › The Seventh Doctor
The Seventh Doctor
Legendary Creature — Time Lord Doctor · {3}{W}{U} · Blue/White commander
Whenever The Seventh Doctor attacks, choose a card in your hand. Defending player guesses whether that card's mana value is greater than the number of artifacts you control. If they guessed wrong, you may cast it without paying its mana cost. If you don't cast a spell this way, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this token: Draw a card.")
Build a The Seventh Doctor deck →
What The Seventh Doctor actually does
Read off the card by the same engine the Forge and Analyzer use — this is the mechanical classification, not a summary.
- Triggered ability · attackWhenever The Seventh Doctor attacks, choose a card in your hand. Defending player guesses whether that card's mana value is greater than the number of artifacts you control. If they guessed wrong,
- Keyword · investigateinvestigate
What a The Seventh Doctor deck wants
The plan the Forge derives for this commander: the roles it fills and how many of each.
- 32× Mana value at or above the floor — for a cascade commander a cheap card is a DEFECT, not a bargain
- 16× A creature that HAS the keyword the commander's trigger counts — a card that merely says the word is not one
- 10× Make creature tokens — a static anthem or a go-wide commander needs a board to be wide
- 22× A permanent of the exact NON-creature type the commander counts — artifacts for an artifact commander, enchantments for an enchantress
- 5× Actually remove one problem permanent — preventing its damage is not removing it
- 1× Answer a whole board at once
- 2× Answer a spell or ability before it resolves
- 9× Find the exact card the plan needs
- 7× Refill your hand
Best cards for The Seventh Doctor
Ranked by an engine that reads what each card does — its real cost, its delay and how reliably it works — rather than counting how often other people play it.
Mana value at or above the floor — for a cascade commander a cheap card is a DEFECT, not a bargain
- Excalibur, Sword of Eden12 mana
- Ancient Stone Idol10 mana
- Blightsteel Colossus12 mana
- Darksteel Colossus11 mana
- Emrakul, the Promised End13 mana
- Emrakul, the World Anew12 mana
- Flayer of Loyalties10 mana
- It That Betrays12 mana
A creature that HAS the keyword the commander's trigger counts — a card that merely says the word is not one
- Thraben Inspector1 mana
- Floodhound1 mana
- Novice Inspector1 mana
- Forensic Gadgeteer3 mana
- Erdwal Illuminator2 mana
- Piper Wright, Publick Reporter2 mana
- Mistway Spy1 mana
- April O'Neil, Live on the Scene2 mana
Make creature tokens — a static anthem or a go-wide commander needs a board to be wide
- Chasm Skulker3 mana
- Dalkovan Encampment0 mana
- Elenda's Hierophant3 mana
- Kozilek's Unsealing3 mana
- Hero of Bladehold4 mana
- Myrel, Shield of Argive4 mana
- Parhelion II // Parhelion II0 mana
- Trendy Circus Pirate0 mana
A permanent of the exact NON-creature type the commander counts — artifacts for an artifact commander, enchantments for an enchantress
- Chrome Mox0 mana
- Everflowing Chalice0 mana
- Lotus Petal0 mana
- Mox Amber0 mana
- Mox Diamond0 mana
- Mox Opal0 mana
- Lion's Eye Diamond0 mana
- Ornithopter0 mana
Actually remove one problem permanent — preventing its damage is not removing it
- Path to Exile1 mana
- Swords to Plowshares1 mana
- Reality Shift2 mana
- Pongify1 mana
- Rapid Hybridization1 mana
- Resculpt2 mana
- March of Otherworldly Light1 mana
- Suspend1 mana
Answer a whole board at once
- Final Showdown1 mana
- Vanquish the Horde8 mana
- Martyr's Cry2 mana
- Split Up3 mana
- Cathedral Membrane2 mana
- Citywide Bust3 mana
- Displacement Wave2 mana
- Harsh Mercy3 mana
Answer a spell or ability before it resolves
- Pact of Negation0 mana
- Counterspell2 mana
- Three Steps Ahead1 mana
- Long River's Pull2 mana
- Force of Will5 mana
- Abjure1 mana
- Archmage's Charm3 mana
- Cancel3 mana
Find the exact card the plan needs
- Reshape2 mana
- Mask of the Mimic1 mana
- Long-Term Plans3 mana
- Open the Armory2 mana
- Whir of Invention3 mana
- Merchant Scroll2 mana
- Enlightened Tutor1 mana
- Mystical Tutor1 mana
Refill your hand
- Esper Sentinel1 mana
- Mystic Remora1 mana
- Skullclamp1 mana
- Curiosity1 mana
- Wizard Class1 mana
- Rhystic Study3 mana
- Archivist of Oghma2 mana
- Faerie Mastermind2 mana