Graves vs Ambessa

Position with no minion between you and your target: each New Destiny (passive) auto fires 4 bullets that can't pass through units.

Cast Smoke Screen (W) on their carries: inside the smoke, they're slowed and can't see anything outside it for 4 seconds.

Fire Collateral Damage (R) with your back to the danger: the shot knocks you backward, enough to reposition while dealing damage.

Cast Quickdraw (E) often during your clear: it reloads a shell, gives armor and magic resist, and each bullet that hits lowers its cooldown.

Take a trade once her spells are down: Drakehound's Step (passive) only gives her a dash when she casts an ability, and her basic spells cost 70 energy.

Stop hitting her when she casts Repudiation (W): if she blocks damage from a champion, her ground slam hurts much more.

Once she hits level 6, don't isolate yourself at the back of your team: Public Execution (R) lets her blink to the farthest enemy in the line, and it can't be stopped.