Question 15 from the latest Cranial Insertion article (link)
Q: Can I conspire Fling sacrificing Wort, the Raidmother?
A: You can try, but it won't help. In the "Crazy/Choose" step, you select to conspire. In the "Tried/Total" step, you add "tap two red creatures" as a cost. In the "Pills/Pay" step, you tap two red creatures and sacrifice Wort. Now when you complete the process, Fling no longer has conspire. Wort's dead and gone. There's no ability to trigger, even though you paid the cost, and this is just weird.
Is there a way to change the rules to make conspire stick? Maybe a rule explaining that abilities from static abilities keep existing on the spell even if the static ability is gone?
But then, what about Thrumming Stone ? We probably don't want ripple to trigger if we sacrifice the stone for Kuldotha Rebirth. Maybe such a rule can be more specific, only applying to keyword abilities who change how the spell is cast.