I don't think it ever worked with incant, because you have to have a single target (which you do, since you are now targeting the bone golem) but I think that it can also be cast with a specific spell as the target right away. I made my Ctrl+U(nravel) macro into "prep unravel\rcast at " so that my command line is loaded and just waiting for me to tell it which critter (so that might be "third warfarer" or whatever).

If the command line will accept "cast at target" then you're golden.