Sigil of transference is broken in that you can use it for ex. Glyph rezzing target(s) at 1% hp and with poison- which will cause problems. Also it’s basically a buff for scourge in that with avatars it’s crazy sustain and damage are there but with more damage now.
The real solution was make these bunker builds a tiny bit less tanky, but get rid of the part that makes them lack counter play which in scourges case is the damage. So, bring menders back with power and precision stats swapped and reduce secondary stats from 500 to 400 like you did with paladins.
This way you have a designated support amulet, that now does little damage and you also sacrifice some sustain compared to others for taking it. Also this will leave options while making the game more fun compared to introducing cancer options that will break the game like we just did.