It's frustrating to attack yasuo but do NO DAMAGE cuz of his shield
So what if we reworked his shield to only block like 75% of incomming damage which would be taken off the shield's health and 25% yasuo's? That way the attacker can see some feedback. To compensate we can make yasuo's shield charge with moving all the time, rather than be procced and go away (Like it's always up, think protoss in sc2) and it can have a bigger max, maybe 2.25 x, that way yasuo still needs to be wary and then you dont have to lose the shield cuz it came up from like 1 tick of RED BUFF or the teemo venom