The Fugitive Doctor — ruling 1

"Investigate" means "Create a Clue token." A Clue token is a colorless Clue artifact token with "{2}, Sacrifice this artifact: Draw a card."

The Fugitive Doctor — ruling 2

"Flashback [cost]" means "You may cast this card from your graveyard by paying [cost] rather than paying its mana cost" and "If the flashback cost was paid, exile this card instead of putting it anywhere else any time it would leave the stack."

The Fugitive Doctor — ruling 3

You must still follow any timing restrictions and permissions, including those based on the card's type. For instance, you can cast a sorcery using flashback only when you could normally cast a sorcery.

The Fugitive Doctor — ruling 4

To determine the total cost of a spell, start with the mana cost or alternative cost (such as a flashback cost) you're paying, add any cost increases, then apply any cost reductions. The mana value of the spell is determined only by its mana cost, no matter what the total cost to cast the spell was.

The Fugitive Doctor — ruling 5

A spell cast using flashback will always be exiled afterward, whether it resolves, is countered, or leaves the stack in some other way.

The Fugitive Doctor — ruling 6

If you cast an instant or sorcery with {X} in its mana cost this way, you must choose 0 as the value of X. (You still have to pay {2}{R}{G}.)

The Fugitive Doctor — ruling 7

If a card has multiple instances of flashback, you may choose any of its flashback costs to pay.

The Fugitive Doctor — ruling 8

If a split card gains flashback, you pay only the cost of the half you're casting.

The Fugitive Doctor : règles, fonctionnement et interactions (MTG)

The Fugitive Doctor is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

Official card text

When The Fugitive Doctor enters, investigate. Whenever The Fugitive Doctor attacks, you may sacrifice a Clue. When you do, target instant or sorcery card in your graveyard gains flashback until end of turn. (You may cast that card from your graveyard for its flashback cost. Then exile it.)

How it works : The Fugitive Doctor

Original English text — Wizards of the Coast / Scryfall

#1October 13, 2023· Wizards of the Coast
"Investigate" means "Create a Clue token." A Clue token is a colorless Clue artifact token with ", Sacrifice this artifact: Draw a card."
Card named in this ruling
Clue
#2October 13, 2023· Wizards of the Coast
"Flashback [cost]" means "You may cast this card from your graveyard by paying [cost] rather than paying its mana cost" and "If the flashback cost was paid, exile this card instead of putting it anywhere else any time it would leave the stack."
No other card is named in this ruling.
#3October 13, 2023· Wizards of the Coast
You must still follow any timing restrictions and permissions, including those based on the card's type. For instance, you can cast a sorcery using flashback only when you could normally cast a sorcery.
No other card is named in this ruling.
#4October 13, 2023· Wizards of the Coast
To determine the total cost of a spell, start with the mana cost or alternative cost (such as a flashback cost) you're paying, add any cost increases, then apply any cost reductions. The mana value of the spell is determined only by its mana cost, no matter what the total cost to cast the spell was.
No other card is named in this ruling.
#5October 13, 2023· Wizards of the Coast
A spell cast using flashback will always be exiled afterward, whether it resolves, is countered, or leaves the stack in some other way.
No other card is named in this ruling.
#6October 13, 2023· Wizards of the Coast
If you cast an instant or sorcery with in its mana cost this way, you must choose 0 as the value of X. (You still have to pay .)
No other card is named in this ruling.
#7October 13, 2023· Wizards of the Coast
If a card has multiple instances of flashback, you may choose any of its flashback costs to pay.
No other card is named in this ruling.
#8October 13, 2023· Wizards of the Coast
If a split card gains flashback, you pay only the cost of the half you're casting.
No other card is named in this ruling.
#9October 13, 2023· Wizards of the Coast
Unlike other creature types in Magic that are each only one word, the two words "Time Lord" represent a single creature subtype. Time Lord is the only two-word creature type.
No other card is named in this ruling.
#10October 13, 2023· Wizards of the Coast
Neither "Time" nor "Lord" are creature types. Some older cards were printed with the subtype "Lord," but all of those cards have updated Oracle card text that removed that type.
No other card is named in this ruling.
#11October 13, 2023· Wizards of the Coast
If an effect instructs you to choose a creature type, you may choose Time Lord.
No other card is named in this ruling.