The Horn of Jericho
A Tytalian magus with a dramatic bent, Rheon decided it was time to take down one of his agent's mundane rivals in a biblical fashion. He was easily able to manipulate things so the Duke was thought to be beginning heretical studies, but he could not find a way to finish his plan without someone else learning of his machinations. Thus, he had to create this final instrument himself, despite his lack of skill with Perdo.
(Design note: I envision this ram's horn the size of a tuba.)
The Horn of Jericho (Perdo Terram[Imaginem])
R: Voice, D: Momentary, T: Group
This horn is carved out from a massive ram's horn of epic proportions, capped and inlaid with gold and silver. When blown, it's call can be heard far, far away, extending the voice range of the magical item. When turned towards a castle and blown in thrice succession, the outer walls crumble and shatter into fragments, appearing to be torn down by dark shadows crawling up out of the ground. This last effect was added for a mixture of style and to hide his own sigil, which is a blast of sweltering hot air wafting between the horn blower and the target.
(Base 4, +2 Voice, +2 group, +2 size, +1 Imaginem requisite; 3 uses per day)
Side Effects table (1d10)
1 Exaggerated Sigil: Despite his attempts to hide his sigil, the horn's sounding is accompanied by a rippling waft of hot, smoldering wind that distorts the air between blower and target.
2-3 Minor Flaw: In addition to the target, any stone or rocks the horn-blower has in their possession will crumble to dust.
4-5 Minor Side Effect:
6 Minor Benefit: Those who hear the horn-blowing are either emboldened (Brave score +2) or frightened (Brave score -2) based on their alliance and opinion of the suddenly crumbling walls. This mood shift may last for days.
7 Major Flaw: After blowing the horn, the user is deafened by the blast. They can attempt to recover every hour with a Stamina roll against ease factor 9.
8 Major Side Effect: Strangely, after blowing the horn it feels incredibly light and easy to move for the rest of the day, despite its massive size.
9 Major Benefit: Almost as if emulating the epic of Jericho in divine mockery, when blowing the horn, anything within the targeted walls with Infernal Might loses 5 might points with a +15 penetration. For some reason, this effect is not detectable by hermetic means. Did Rheon accidentally use Infernal vis, or Divine? While Rheon's initial target did not have demons in his employ, someone may have greater plans for this Horn.
10 Fatal Flaw: Instead of destroying the stone walls targetted, the blast of the horn instead destroys and weakens any mortar. While this will weaken and crumble many walls, many will be left still standing and possibly repairable.