shield should scale off bonus health and not decay, possibly lower the total shield duration to 6 seconds but have the extra AD remain for as long as you're in combat, much like how 
works
in return make it melee only so that we can make it a good item again
MaeDoSan1 votesA good item isn't one that is bought all the time
Big Lincoln1 votesa good item isn't passed over by every champion except illaoi either
MaeDoSan1 votesJax
The Last Ballad1 votesTwo out of 140ish(~.014%) champions is not good, and two out of 66 champs that fit into the "fighter" class(.03%), while a better percentage, is still terrible.