Plot question: Do you think Folmarv left SPOILER dying in order for... ?

Do you think Folmarv gave Isilud auracite and then attacked him and left him half-dead in order for Isilud to invoke the power of the auracite in desperation and summon a Lucavi? It would have been interesting to see the Pisces Lucavi. But then again I'm glad my guy Isilud resisted the temptation