Forensic Gadgeteer — ruling 1

Activated abilities contain a colon. They're generally written "[Cost]: [Effect]." Some keywords are activated abilities and will have colons in their reminder text. Triggered abilities (starting with "when," "whenever," or "at") are unaffected by the cost reduction ability of Forensic Gadgeteer.

Forensic Gadgeteer — ruling 2

Forensic Gadgeteer's last ability affects only abilities of artifacts you control on the battlefield. The costs of activated abilities of artifact cards that work in other zones, such as cycling, won't be reduced.

Forensic Gadgeteer — ruling 3

Clue is an artifact type. Even though it appears on some cards with other permanent types, it's never a creature type, a land type, or anything but an artifact type.

Forensic Gadgeteer — ruling 4

If an effect refers to a Clue, it means any Clue artifact, not just a Clue artifact token. For example, you can sacrifice Wrench to pay for Alquist Proft, Master Sleuth's activated ability.

Forensic Gadgeteer — ruling 5

You can't sacrifice a Clue to pay multiple costs. For example, you can't sacrifice a Clue token to activate its own ability and also to activate Alquist Proft, Master Sleuth's ability.

Forensic Gadgeteer — ruling 6

Some spells and abilities that investigate may require targets. If each target chosen is an illegal target as that spell or ability tries to resolve, it won't resolve. You won't create any Clue tokens.

Forensic Gadgeteer — ruling 7

Some abilities trigger "whenever you sacrifice a Clue". Those abilities trigger whenever you sacrifice a Clue for any reason, not just to activate a Clue's activated ability.

Forensic Gadgeteer : règles, fonctionnement et interactions (MTG)

Forensic Gadgeteer 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

Whenever you cast an artifact spell, investigate. (Create a Clue token. It's an artifact with ", Sacrifice this token: Draw a card.") Activated abilities of artifacts you control cost less to activate. This effect can't reduce the mana in that cost to less than one mana.

Complete guide

Forensic Gadgeteer is a brilliant addition to artifact-based decks, acting as both a resource generator and a cost-reducing engine. By investigating every time you cast an artifact, this Vedalken Artificer ensures you never run out of clues to solve the mystery of your opponent's strategy.

What it Does

Forensic Gadgeteer provides two main benefits: a triggered ability and a static ability. Whenever you cast an artifact spell, you investigate, which means you create a Clue token. Additionally, it makes the activated abilities of all artifacts you control cost {1} less to activate, though it cannot reduce the mana cost below one mana.

How it Resolves Step by Step

When you cast an artifact spell, the Gadgeteer's first ability triggers and goes on top of the stack. You will create a Clue token before the original artifact spell even resolves. Once the Clue (or any other artifact) is on the battlefield, the Gadgeteer's static ability applies immediately. If you want to use a Clue's ability to draw a card, you now only pay {1} and sacrifice the token instead of the usual {2}.

Common Mistakes

A common error is trying to reduce the cost of abilities in other zones, like cycling an artifact card from your hand; however, this reduction only applies to permanents on the battlefield. Another mistake is trying to reduce a cost to zero. The rules text specifically states the mana cost cannot be reduced to less than one mana. Finally, remember that this only affects activated abilities (those with a colon) and not triggered abilities (starting with when, whenever, or at).

When to Play it

This creature is most effective in decks with a high density of low-cost artifacts. By casting many cheap artifacts, you generate a massive board of Clue tokens that can be cracked for just one mana each, providing incredible card advantage and keeping your hand full.

Interaction examples

Generating and Cracking Clues

Forensic Gadgeteer Clue

Clue

With Forensic Gadgeteer on the battlefield, you cast an artifact spell. The Gadgeteer triggers, and you investigate to create a Clue token. Because of the Gadgeteer's static ability, the Clue's activated ability—which usually costs {2} and a sacrifice to draw a card—now only costs {1} and a sacrifice.

The One Mana Limit

Forensic Gadgeteer

If you control an artifact with an activated ability that costs {1}, Forensic Gadgeteer will not make that ability free. The ability text explicitly prevents the mana cost from being reduced below one, so you must still pay {1} to activate it.

Guide written with AI from the official text and rulings. Official English text prevails.

How it works : Forensic Gadgeteer

Original English text — Wizards of the Coast / Scryfall

#1February 2, 2024· Wizards of the Coast
Activated abilities contain a colon. They're generally written "[Cost]: [Effect]." Some keywords are activated abilities and will have colons in their reminder text. Triggered abilities (starting with "when," "whenever," or "at") are unaffected by the cost reduction ability of Forensic Gadgeteer.
No other card is named in this ruling.
#2February 2, 2024· Wizards of the Coast
Forensic Gadgeteer's last ability affects only abilities of artifacts you control on the battlefield. The costs of activated abilities of artifact cards that work in other zones, such as cycling, won't be reduced.
No other card is named in this ruling.
#3February 2, 2024· Wizards of the Coast
Clue is an artifact type. Even though it appears on some cards with other permanent types, it's never a creature type, a land type, or anything but an artifact type.
Card named in this ruling
Clue
#4February 2, 2024· Wizards of the Coast
If an effect refers to a Clue, it means any Clue artifact, not just a Clue artifact token. For example, you can sacrifice Wrench to pay for Alquist Proft, Master Sleuth's activated ability.
Card named in this ruling
Clue
#5February 2, 2024· Wizards of the Coast
You can't sacrifice a Clue to pay multiple costs. For example, you can't sacrifice a Clue token to activate its own ability and also to activate Alquist Proft, Master Sleuth's ability.
Card named in this ruling
Clue
#6February 2, 2024· Wizards of the Coast
Some spells and abilities that investigate may require targets. If each target chosen is an illegal target as that spell or ability tries to resolve, it won't resolve. You won't create any Clue tokens.
Card named in this ruling
Clue
#7February 2, 2024· Wizards of the Coast
Some abilities trigger "whenever you sacrifice a Clue". Those abilities trigger whenever you sacrifice a Clue for any reason, not just to activate a Clue's activated ability.
Card named in this ruling
Clue