Use the following trick to obtain Longinus, the former overlord's own spear (in the corner, who informs you about weapons). When persuading the Dark Assembly by force, if you happen to fight someone who works in the castle and defeat them (for example, the hospital woman), a grave will appear where they normally stand. Talk to Longinus and he will praise you for being the first person worthy of owning King Krichevskoy's famed spear and it will now become yours. It is quite powerful. To regain the services of whoever you killed, save the game, quit, and reload your game.