Dark Limit Immortal Gu

Hei Lou Lan uses dark limit Immortal Gu and still begins to feel unable to suppress that physique, needing a strength path Immortal Gu to advance to Gu Immortal realm. ^{ch. 530} Northern plains Gu Immortals know Fairy Jiang Yu as a dark path Gu Immortal who holds dark limit Immortal Gu, which can conceal inspirations and make deductions difficult. Fairy Jiang Yu used it to seal the aura of one of the ten extreme physiques on Hei Lou Lan so heaven and earth would not induce that physique. ^{ch. 692}

Hei Lou Lan later tells Fang Yuan that Immortal Gu Dark Limit, held by Gu Immortal Jiang Yu, can conceal aura, hide heavenly secrets, and protect from deductions, and that her Great Strength True Martial Physique was sealed with its help. ^{ch. 649} Fang Yuan recalls from his previous life that it can conceal aura and obstruct calculations. ^{ch. 653} A later comparison states its effect is to make the Gu Immortal be overlooked and to make others fail in the deduction. ^{ch. 820} Fang Yuan later names it his only dark path Immortal Gu. ^{ch. 1356}

Ying Wu Xie analyzes that the Immortal Gu belonged to Shadow Sect and perished with Jiang Yu, and that Lang Ya land spirit, having founded Lang Ya Sect, refined dark limit Immortal Gu to let the sect’s members move about more easily. That analysis also states the Gu can conceal aura and hide from heaven’s will. ^{ch. 1042} Fang Yuan later obtains dark limit Immortal Gu from Lang Ya land spirit as one of three rank six Immortal Gu in the Luo Po Valley sale, together with dog shit luck Immortal Gu and blood asset Immortal Gu. ^{ch. 1063}

When someone deduces about him, Fang Yuan uses dark limit Immortal Gu to resist that power. Each activation needs a long rest before the Gu can be used again. ^{ch. 1211}

As Fang Yuan’s fame in Southern Border rises after he draws close to Qiao Si Liu, attempts to deduce him grow rapidly, and it becomes very difficult to deal with the situation using dark limit Immortal Gu alone. ^{ch. 1321}

Once his dark path attainment rises to grandmaster, Fang Yuan works out that dark limit Immortal Gu and perseverance Immortal Gu can serve as the cores of a new immortal killer move that conceals him. ^{ch. 1340} He creates it as extended dark concealment, with rank six dark limit Immortal Gu and rank seven perseverance Immortal Gu as its cores and several hundred mortal Gu greatly lengthening dark limit Immortal Gu’s effect. ^{ch. 1346}

To make a super Gu formation that can hold off grey night, Fang Yuan contributes dark limit Immortal Gu, which flies out with many mortal Gu. ^{ch. 1356} As Fairy Zi Wei contests control of that super Gu formation, he judges that he can no longer take dark limit Immortal Gu back. ^{ch. 1360} With dark limit Immortal Gu lost, heaven’s will can now monitor him at all times. ^{ch. 1383} After the battle of the giant dream realm, the Gu has fallen into Heavenly Court’s hands. ^{ch. 1393} Fairy Zi Wei later says she has dark limit Immortal Gu, a crucial clue to Fang Yuan, yet still cannot deduce his location. ^{ch. 1554}