Hashmal is the leader of The Lucavi and one of the main villains in Final Fantasy Tactics.
Story
Hashmal spends most of the game operating through the body of Vormav Tingel and causes a great deal of bloodshed and death in pursuit of his ambition to revive Ultima. he eventually has Ramza and his allies declared enemies of the church.
Massacre at Riovanes
With Ramza and his allies marked as heretics, the Church was able to move more easily against him. Hashmal sent his host bodies son to Orbonne to obtain the Virgo stone, a necessity in resurrecting his master Altima. Though Izlude managed to obtain Virgo, he soon lost it to one of Grand Duke Gerrith Barrington's assassins, who brought Izlude in as a prisoner. An angry and deeply disappointed Vormav struck his son across the face.
Soon, Ramza's forces broke through the castle gate, Vormav sent Wiegraf Folles, now possessed by a Lucavi, to deal with him. The Duke threatened to expose the Church's multitude of lies if Vormav did not give him the power of the Stones, but Vormav simply removed his Zodiac Stone and, to their horror, massacred everyone in the entire room, including his own son (an act which his daughter would later blame on Ramza). After his bloodbath, the Virgo Stone reacted to Alma, and Vormav realized she must be the true host of Altima. He kidnapped the girl and took her with him.
The Endgame
With only two Lucavi remaining, Elmdore and Hashmal were forced to speed up their plan. The Marquis volunteered to stop the heretic while Vormav found the passage to the Necrohol of Mullonde. Vormav took his two subordinates Rofel and Cletienne to the church on the Island of Murond, where the Glabados Church is centered. They "interrogated" the High Priest for information, and left his bleeding corpse on the floor of the temple. Vormav demanded the Germonick Scriptures from Ramza in exchange from his sister. Naturally, Vormav was lying, and after learning the Necrohol's location from the Scriptures, he attacked Ramza before teleporting away.
Along with his companions Rofel, Balk, and Cletienne, Vormav ventured into the depths of the Orbonne Monastery, the known resting place of Altima's soul. His allies fell like dominoes, one by one; first Rofel, then Cletienne, and finally Balk. The once-mighty Templar were all but wiped out. When confronted by Ramza's party, Vormav mused that even after all this death and destruction, there was still not enough blood spilt to resurrect his master, so he released the power of his Zodiac Stone and turned into his true formto try and use Ramza's blood to bring her back. However, he was defeated by Ramza's party, and as the Virgo Stone responded to Alma, he plunged his claws into his own chest, sacrificing himself to revive the Bloody Angel.