Ixalli's Lorekeeper — ruling 1

A "Dinosaur source" is any object with the creature type Dinosaur. This means you could spend the mana to activate an ability of a Dinosaur you control or a Dinosaur card in your hand or graveyard, for example.

Ixalli's Lorekeeper : règles, fonctionnement et interactions (MTG)

Ixalli's Lorekeeper 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

: Add one mana of any color. Spend this mana only to cast a Dinosaur spell or activate an ability of a Dinosaur source.

How it works : Ixalli's Lorekeeper

Original English text — Wizards of the Coast / Scryfall

#1November 10, 2023· Wizards of the Coast
A "Dinosaur source" is any object with the creature type Dinosaur. This means you could spend the mana to activate an ability of a Dinosaur you control or a Dinosaur card in your hand or graveyard, for example.
No other card is named in this ruling.