Well, on Friday night my Verditius (who has somehow gained a "self-sacrificing" reputation) managed to get mauled by a black demonic hound. One failed fast-cast, one botched defence roll, and one incapacitating wound later... and my Verditius is wondering whether he can trigger a device as a defensive measure instead of using a spontaneous spell.
I couldn't find any reference in the books but I'm sure I'm not the first to wonder.
So, the scenario I'm looking for:
Magus begins to read from the ancient Roman tablet.
Black Hound springs into shot, snarling and bounding.
Magus turns, instinctively raises spear to defend himself, screams command word and... At this point, I failed the fast cast roll anyway, but bear with me.
The device is activated and the magus is swept unnaturally up into the air out of the Hound's way.
So rather than using a spont/mastered ReCo spell, I want to trigger an effect in his talisman.
Has anyone covered this? Are there any game problems with this? Would this kind of triggering be an additional effect modification (based on the cost for environmental trigger)?