Yasuo should lose his shield.
His kit is already full of freebies No mana costs low CD Q auto reset that has longer than auto-atk range and becomes ranged after two successive procs. Free damage multiplier from crit % chance bonus. He only has to get two crit items to hit 100% crit chance and more than double his damage.
His shield recharges extremely fast, giving him free hp expendable hp buffer every few seconds that he can use to out-trade people and simply hang back and wait for it to recharge since he can waveclear pretty damn fast even with just a zeal. Not only that but Phantom Dancer increases his shield worth with the 12% damage reduction. The risks he takes are incredibly low and the rewards he gets are really high. He doesn't have a need for that shield at all. He can probably do talon's job better than talon can AND be able to get back out with little effort.