Quick answer: Bastion of Mó Mask is the reward for winning your fifth Lóng Pillar trial, in any order. It Soul Tempers Sanguine into Infernal Rouge.
Where to get Bastion of Mó Mask
Bastion of Mó Mask is a Soul Tempering material in Phantom Blade Zero. It is tied to your Lóng Pillar trial count, not to a specific pillar. Win trials at any of the Lóng Pillar locations, and the fifth victory awards the mask. The order you clear them in does not matter.
Bastion of Mó Mask item card
The item card reads:
A golden mask crafted over generations by the people of the Bastion of Mó to suppress the surging Sha-Chi in their bloodline.
The dangerous experience of losing control of his Sha-Chi as a youth taught Soul patience and restraint, leaving him accustomed to facing every hardship with calm and composure. But the mask has not come too late: it is proof of his bloodline, and it will help him wield that bloodline’s power.
Its effect line reads: “Used to Soul Temper Sanguine.”
What Bastion of Mó Mask does
The materials for every other weapon are listed with all Soul Tempering materials.
The upgrade is Infernal Rouge, and its effect reads: “Soul Tempers into Infernal Rouge, the heirloom weapon of the Bastion of Mó.”
