Lightwielder Paladin — ruling 1

Lands are colorless (even if their frames have some colored elements to them). You can’t target a Swamp, a Mountain, or any other land with Lightwielder Paladin’s ability (unless some other effect has turned that land black or red).

Lightwielder Paladin : règles, fonctionnement et interactions (MTG)

Lightwielder Paladin 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

First strike (This creature deals combat damage before creatures without first strike.) Whenever this creature deals combat damage to a player, you may exile target black or red permanent that player controls.

How it works : Lightwielder Paladin

Original English text — Wizards of the Coast / Scryfall

#1October 1, 2009· Wizards of the Coast
Lands are colorless (even if their frames have some colored elements to them). You can’t target a Swamp, a Mountain, or any other land with Lightwielder Paladin’s ability (unless some other effect has turned that land black or red).
No other card is named in this ruling.