By 951, another Southern Tang neighboring state —
Chu, to its southwest — had been devastated by a civil war between brothers
Ma Xiguang and
Ma Xi'e. Ma Xi'e eventually prevailed, with Southern Tang support, and therefore, in 951, sent his secretary Liu Guangfu () to Jinling to submit tributes to Li Jing. Li Jing welcomed Liu with respect, and Liu secretly told him, "Hunan [(i.e., the Chu realm)] has tired people and an arrogant lord. It can be taken." Li thereafter commissioned Bian Hao as the prefect of Xin Prefecture (信州, in modern
Shangrao,
Jiangxi), but stationed him and his troops at Yuan Prefecture (袁州, in modern
Yichun,
Jiangxi), in anticipation of a potential chance to strike. Later in the year, Ma Xi'e, who angered the people by his viciousness, particularly against prior enemies, and was himself overthrown in a coup led by his brother
Ma Xichong, who seized the throne. However, he faced armed opposition from the general
Liu Yan, who controlled Wuping Circuit (武平, headquartered in modern
Changde,
Hunan), and of a group of generals who supported Ma Xi'e and redeclared him prince in the
Mount Heng region. Further, Ma Xichong himself alienated the people by being unfair in his governance and by his frivolousness and drunkenness. Several generals who supported Ma Xichong's coup, led by Xu Wei (), were concerned that Ma Xichong could not possibly prevail against the Wuping and Mount Heng forces, and therefore considered killing him. Ma Xichong became aware that a plot was occurring. In fear, he sent his officer Fan Shoumu () to the Southern Tang court, offering to submit the realm. Li thereafter ordered Bian to take his army into the Chu capital
Changsha. When Bian arrived, Ma Xichong opened the city and welcomed him in, surrendering the realm to him and ending Chu. As the people were then suffering from starvation due to the lengthy civil war, Bian opened up the food storage and distributed the grain previously stored by the Chu princes to the people, gaining their support. Meanwhile, though, as Liu was nominally submissive to Li, Bian did not expect a potential attack from him. When Li sent emissaries to Lang to summon Liu to Jinling, however, Liu refused, and, after informing Wang and another general,
Zhou Xingfeng, that he would thus expect an attack from Southern Tang, Wang and Zhou advocated an attack against Bian. Liu decided to launch an attack, and sent Wang, Zhou, and eight other generals, with Sun and Cao serving as their guides, quickly toward Changsha. The Southern Tang positions along the way quickly collapsed, and Bian, after briefly defending the city but having no prospect of reinforcement, decided to abandon Changsha and flee, allowing Wang to enter Changsha and take it over and ending Southern Tang's brief control of the region. In the aftermaths, Li stripped Bian of his commissions and exiled him to Rao Prefecture (饒州, in modern Shangrao). It was said that, because Bian was a devout Buddhist, he often guided his actions by Buddhist principles of mercy. When he followed Cha in the campaign against Min, he tried to save as many people from death as possible, and therefore gained the nickname of "
Arhat Bian" from the people of Jian. When he took over Changsha, he made sure that the people were comforted and that not even the daily business routines were disrupted, and therefore gained the nickname of "
Bodhisattva Bian" from the people of Changsha. But after he became governor, his rule lacked proper principles, and he spent all day offering sacrifices to deities. In disappointment, the people of Changsha nicknamed him, "Monk Bian." == Campaign against Later Zhou ==