Battletome: Skaven
At 128 pages long with an eight-page gatefold section, Battletome: Skaven is packed with lore, and features Battle Traits, Battle Formations, Heroic Traits, Artefacts of Power, and Spell, Prayer, and Manifestation Lores. There are 43 warscrolls covering the vast menagerie of Skaven characters, troops, horrors, and war machines, plus rules for the Gnawfeast Clawpack Spearhead, two Armies of Renown, and two Regiments of Renown.