One the greatest parts of being involved with the 'Hack movement is seeing what interesting things people can do with simple moving parts. Shout out to +Jeff Call for some inspiration on this.
Im not a huge fan of the Usage die being used for everything, but in additional things im already bringing in UD mechanics to Armor points and that solution isn't really doin git for me. So. Fuck it. Im thinking armor. There are two types of Armor. Light (d6) and Heavy (d8) When you take damage roll the Amor die, reduce the amount of damage taken by that amount. Additionally if you roll a natural 1-2 then the die downgrades in the normal Usage Die manner.Small shields +1 to the roll, and Large shields +2.
Note: You could do Light (d4) Medium (d6) Heavy (d8) - this fits with the 3 range band thing TBH has going on? Dunno, I like the simplicity of two options for amor, Heavy or Light. Binary sooths the soul.