They could make it so armor doesn't completely blocks a damage. Like, in a sense an armor is supposed to reduce the damage you take, like "toughness". They can make it so if you have magical armor, you lose a small amount of HP from magic damage while also depletes armor, but you take a lot more health damage from physical or something of that nature.
Maybe some for CC, if you have armor, you take like...a "pre" CC status, like "shocked" is for stun. So cold for frozen, "fragile" for knockdowns, and stuff like that. So you have armor, get a "pre" CC status, then you have to get hit by that same CC effect to actually knock you down. Maybe if the second hit doesnt break armor either, it can have a reduce duration, so 2 -> 1 turn.
