the amount of ad's on this fight make it pretty easy to keep perma blackhole up. I'm sure most people wouldn't mind if it got changed, until then its not really considered an exploit to knock things off the map, so just do it..
why on earth would you ever do this without knockoff's? even still if that got fixed it wouldn't be much harder. sounds like the cw's you are playing with aren't very good.
Entangling force on tab gets me 1/2-full AP. i would recommend using that. Edit a little more indepth: the rotation i use in most cases is 1. pop arcane singularity 2. icy terrain 3. then entangling force 4. usually i have almost full bar from entangling force, so i wont use shield sometimes, but otherwise i use it after…