Talk:Ruinous Sigil/@comment-23878607-20140630074156

Ruinous Sigil can be fired by the Sorcerer/Mage skill Magick Agent. It, in turn, will then fire a Great Cannon. Ruinous Sigils are also fired by enemy contact, therefore, it's dead easy to set a RS/GC trap and walk or run off to do something else while the trap detonates.