as a linker 2 thau 1 FF2, I can probably say:
it shouldn’t be too hard to use BC assuming you can blood suck in time for the second cooldown, AND you use BC immediately after levitation (however you cant really double icewall on that time, so fireballs may be a better call)
either stick to it for maximum single burst damage (you should hit it fairly easily with full int transpose)
or go full con, lower your damage to around 150-160k and get cryo 1/pyro 1 for x6 damage bursts