Spoilers: His campaign role and the older faction's lean toward Spawn; no mutated biography beyond that, and no campaign ending.
Who he is in Total War
Morghur leads the Warherd of the Shadowgave. Call of the Beastmen unlocks him with Khazrak the One-Eye and Malagor the Dark Omen. Taurox's brass rampage is the other Beastmen purchase. All four use the race's Herdstones and Blood-grounds in Immortal Empires. Morghur is the lord whose army is expected to make room for Chaos Spawn and to spread corruption while the herd destroys.
He is a melee leader, not the flying caster. The useful plan is a warherd that can protect the monsters he favours: Gors to fix a line, harder beasts to break it, and Spawn where the corruption has already done work. A Bray-Shaman still adds spells if the herd's own magic is thin.
What the older faction already favoured
The Aye Aye patch, years before Immortal Empires, adjusted Morghur's faction around Minotaur upkeep, cheaper Spawn, and a wider spread of Chaos corruption, and it strengthened Spawn in his army. The numbers belonged to that patch. The shape is the part worth keeping. His warherd was already the Spawn herd, and the ground around him was already the corrupted ground.
Khazrak is the guerrilla Beastlord missing an eye to Todbringer's Runefang. Malagor is the Bray-Shaman who incarnates mankind's demise and travels between chiefs. Shadowgave, in the game, is the name of the herd that mutates the battlefield's roster toward Spawn. The other two lords of the same pack already have the longer portraits. Morghur's portrait is the corrupted ground and the Spawn.
Alongside the other herds
Taurox believes, in the Silence & The Fury FAQ, that a ritual at the Heart of the Dark would finish an ascension. That belief is his. Morghur's campaign is not that ritual. It is ruination, Dread, and a melee lord who wants corrupted ground and Spawn in the reinforcement pool.
Patch 4.2.0 is the Warhammer III note attached to his Beastmen access in the existing character record. Ownership remains Call of the Beastmen on the same store as the campaign. Archaon's Update 9.0 subjugation list does not include Beastmen, so the Shadowgave is not a champion the Everchosen confederates.
Morghur the Shadowgave: gameplay and availability · More character stories
Sources
- The Aye Aye! patch notes — Total War — totalwar.com
- Immortal Empires DLC Ownership Guide — SEGA — support.sega.com
- Call of the Beastmen — Steam — store.steampowered.com
- WARHAMMER III patch 4.2.0 — Creative Assembly — community.creative-assembly.com