
Lands you control enter untapped.
Whenever you attack a player, create a Lander token. (It's an artifact with "{2}, {T}, Sacrifice this token: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.")
Horizon Explorer has 2 printings, first in Edge of Eternities Commander (2025). EDHREC ranks it #1,710 among Commander cards. It appears most in Szarel, Genesis Shepherd decks (6,314 on EDHREC). 1 public deck on TCG runs it. It has 2 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.