The Gaia Blade (Gaia no Tsurugi/"Sword of Gaia" in the Japanese version) is a Long Sword-class weapon Artifact available in all three games, and in the original game, many would instinctively identify it as the game's "ultimate weapon". It is found in a treasure chest pretty easily in the game's final dungeon, Venus Lighthouse. Being a Long Sword-class weapon, the Gaia Blade can be equipped on warrior-style Adepts, namely Isaac and Garet, and Felix, and Piers if transferred into The Lost Age, while only the venus-based warrior Matthew can equip it in Dark Dawn. Its buy value is 17,000 coins, and its sell value is 12,750 coins.