In the fires of ancient cosmic destiny,
And of the legendary warriors,
In the fires of ancient cosmic destiny,
To defeat the power of the sorcerer,
I find it kind of heartbreaking that Anstruther's dark prophecy states that all the legends involved in the final battle (on both sides) will not survive, but it doesn't specify anyone by Angus actually dying.
Zargothrax dissolved into liquid dust, yes, and Dreadlord Proletius was destroyed (you can't technically kill a hologram, but I digress), but Ralathor, Hootsman, and Angus all die as well. Angus sacrifices himself to the fires of Schiehallion, of course, but Hoots and Ralathor the Hermit both died on Earth when Hootsman detonated his neutron heart. Angus is the only one who went through the terrorvortex intact.
Ralathor the Warrior is either a manifestation of the terror dimension or a regeneration a la Doctor Who, and Hootsman's 'essence' merged with the terror dimension and made him a god, but he still blew himself up, and died to be reborn as a deity. Ser Proletius can be rebuilt, and of course there's Zargothrax Clone Alpha-1, but...
In the fires of ancient cosmic destiny,
To defeat the power of the sorcerer,
The Prince of Fife must die.
All five of the legends died in the war.
Angus is just the only one who can't come back.