In Depth - NO ULT Reaper

Weapon DMG and Attackspeed are your bread and butter here, Plasma Converter if you are facing big Tanks that can't block your DMG like Orisa, Frenzy Amplifier if you are sure you can get some picks and Armored Vest for these extra hard double hitscan matchups

Sell Situational First then Attackspeed and DMG always Last

Onslaught straight up the biggest DMG increase you can get, Eye of the Spider if you can afford it round 3 you are doing good if not buy Vanadium Injection for that sweet survivability and remember to unbind your Q button once you purchase it

If the Enemy stacks armor -> Codebreaker and Shieldbuster are your Bread and butter

If the healers heal the people you kill -> Volskaya ordonance will help A LOT+

Enemy Tank has 1200 HP + -> El-Sa'ka Suppressor and the only thing you will is their death

Enemy team has a mei -> Neverfrost -> trust me she will ragequit