The Enigma Jewel // Locus of Enlightenment — ruling 1

Craft abilities are activated abilities. You can spend mana from The Enigma Jewel's activated ability to activate its own craft ability, for example.

The Enigma Jewel // Locus of Enlightenment — ruling 2

Activated abilities contain a colon. They're generally written "[Cost]: [Effect]." Some keyword abilities are activated abilities and will have colons in their reminder text.

The Enigma Jewel // Locus of Enlightenment — ruling 3

Locus of Enlightenment has only the activated abilities of the exiled cards used to craft it. It doesn't gain keyword abilities (unless those keyword abilities are activated), triggered abilities, or static abilities.

The Enigma Jewel // Locus of Enlightenment — ruling 4

If an activated ability of an exiled card used to craft Locus of Enlightenment references the card it's printed on by name, treat Locus of Enlightenment's version of that ability as though it referenced Locus of Enlightenment instead.

The Enigma Jewel // Locus of Enlightenment — ruling 5

The "only once each turn" restriction applies to each ability individually, even if multiples of the same card were exiled to craft Locus of Enlightenment. For example, if two of the same card were exiled to craft Locus of Enlightenment, it will have two instances of each of that card's activated abilities. Each of those abilities may be activated once each turn.

The Enigma Jewel // Locus of Enlightenment — ruling 6

An activated mana ability is one that produces mana as it resolves, not one that costs mana to activate.

The Enigma Jewel // Locus of Enlightenment — ruling 7

The copy of the activated ability created by Locus of Enlightenment's triggered ability resolves before the original ability.

The Enigma Jewel // Locus of Enlightenment — ruling 8

The copy is created on the stack, so it's not "activated." Abilities that trigger when a player activates an ability (such as Locus of Enlightenment's own triggered ability) won't trigger.

The Enigma Jewel // Locus of Enlightenment : règles, fonctionnement et interactions (MTG)

The Enigma Jewel // Locus of Enlightenment 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

The Enigma Jewel enters tapped. : Add . Spend this mana only to activate abilities. Craft with four or more nonlands with activated abilities (, Exile this artifact, Exile the four or more from among other permanents you control and/or cards in your graveyard: Return this card transformed under its owner's control. Craft only as a sorcery.) Locus of Enlightenment has each activated ability of the exiled cards used to craft it. You may activate each of those abilities only once each turn. Whenever you activate an ability that isn't a mana ability, copy it. You may choose new targets for the copy.

How it works : The Enigma Jewel // Locus of Enlightenment

Original English text — Wizards of the Coast / Scryfall

#1November 10, 2023· Wizards of the Coast
Craft abilities are activated abilities. You can spend mana from The Enigma Jewel's activated ability to activate its own craft ability, for example.
No other card is named in this ruling.
#2November 10, 2023· Wizards of the Coast
Activated abilities contain a colon. They're generally written "[Cost]: [Effect]." Some keyword abilities are activated abilities and will have colons in their reminder text.
No other card is named in this ruling.
#3November 10, 2023· Wizards of the Coast
Locus of Enlightenment has only the activated abilities of the exiled cards used to craft it. It doesn't gain keyword abilities (unless those keyword abilities are activated), triggered abilities, or static abilities.
No other card is named in this ruling.
#4November 10, 2023· Wizards of the Coast
If an activated ability of an exiled card used to craft Locus of Enlightenment references the card it's printed on by name, treat Locus of Enlightenment's version of that ability as though it referenced Locus of Enlightenment instead.
No other card is named in this ruling.
#5November 10, 2023· Wizards of the Coast
The "only once each turn" restriction applies to each ability individually, even if multiples of the same card were exiled to craft Locus of Enlightenment. For example, if two of the same card were exiled to craft Locus of Enlightenment, it will have two instances of each of that card's activated abilities. Each of those abilities may be activated once each turn.
No other card is named in this ruling.
#6November 10, 2023· Wizards of the Coast
An activated mana ability is one that produces mana as it resolves, not one that costs mana to activate.
No other card is named in this ruling.
#7November 10, 2023· Wizards of the Coast
The copy of the activated ability created by Locus of Enlightenment's triggered ability resolves before the original ability.
No other card is named in this ruling.
#8November 10, 2023· Wizards of the Coast
The copy is created on the stack, so it's not "activated." Abilities that trigger when a player activates an ability (such as Locus of Enlightenment's own triggered ability) won't trigger.
No other card is named in this ruling.
#9November 10, 2023· Wizards of the Coast
If the ability that's copied is modal (that is, it says "Choose one —" or the like), the copy will have the same mode or modes. You can't choose different ones.
No other card is named in this ruling.
#10November 10, 2023· Wizards of the Coast
If the ability that's copied has an X whose value was determined as it was cast, the copy has the same value of X.
No other card is named in this ruling.
#11November 10, 2023· Wizards of the Coast
If the ability has damage divided as it was put onto the stack, the division can't be changed, although the targets receiving that damage still can. The same is true of abilities that distribute counters.
No other card is named in this ruling.
#12November 10, 2023· Wizards of the Coast
Any choices made when the ability resolves won't have been made yet when it's copied. Any such choices will be made separately when the copy resolves.
No other card is named in this ruling.
#13November 10, 2023· Wizards of the Coast
The copy will have the same targets as the ability it's copying unless you choose new ones. You may change any number of the targets, including all of them or none of them.
No other card is named in this ruling.
#14November 10, 2023· Wizards of the Coast
The back faces of some cards with craft refer to cards "used to craft" it. This refers to the cards exiled as part of the cost of the craft ability of the front face. Those cards are considered to be "used to craft" that permanent as long as they remain exiled and the permanent remains on the battlefield, even if the permanent's controller changes or some of its characteristics change (because of a copy effect, for example.)
No other card is named in this ruling.
#15November 10, 2023· Wizards of the Coast
If the materials required include multiple objects, you may exile some of them from among permanents you control and the rest from among cards in your graveyard. You don't have to choose all permanents or all cards from your graveyard.
No other card is named in this ruling.
#16November 10, 2023· Wizards of the Coast
You may exile tokens you control as part of the materials required. However, because they aren't cards and won't stay in exile, any abilities that refer to what you "used to craft" the back faces won't refer to anything.
No other card is named in this ruling.
#17November 10, 2023· Wizards of the Coast
If a card that isn't a transforming double-faced card becomes a copy of a card with craft, it'll stay in exile if you activate the craft ability. It won't return to the battlefield.
No other card is named in this ruling.