So I've spent 2 whole evenings and probably around 60-70 boss attempts to learn this spell.
To my understanding the spell is casted by the Corrruption adds and I haven't done the mechanic correctly (meaning I don't pull the tethers to the bird or spiders) since I seem to only see the spell casted on me when I don't untether it.
Do I have terrible RNG or might I be doing something wrong?