Loot, Exuberant Explorer — ruling 1

The effect of Loot's first ability is cumulative with similar effects. For example, if you control both Loot and Exploration (an enchantment with "You may play an additional land on each of your turns"), you'll be able to play three lands during each of your turns.

Loot, Exuberant Explorer — ruling 2

If a creature card in your library has {X} in its mana cost, X is 0 for the purpose of determining its mana value.

Loot, Exuberant Explorer : règles, fonctionnement et interactions (MTG)

Loot, Exuberant Explorer 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

You may play an additional land on each of your turns. , : Look at the top six cards of your library. You may reveal a creature card with mana value less than or equal to the number of lands you control from among them and put it onto the battlefield. Put the rest on the bottom in a random order.

How it works : Loot, Exuberant Explorer

Original English text — Wizards of the Coast / Scryfall

#1November 8, 2024· Wizards of the Coast
The effect of Loot's first ability is cumulative with similar effects. For example, if you control both Loot and Exploration (an enchantment with "You may play an additional land on each of your turns"), you'll be able to play three lands during each of your turns.
No other card is named in this ruling.
#2November 8, 2024· Wizards of the Coast
If a creature card in your library has in its mana cost, X is 0 for the purpose of determining its mana value.
No other card is named in this ruling.