As the shotguns have high damage falloff and a wide spread, aim to get up close to your enemies so that you can deal the most damage possible.Wraith Form: When activated, Reaper assumes a gaseous purple form for a short period of time.While in this form, he is invincible and untargetable by any enemy weapons or abilities and ignores enemy collision. However, he cannot attack or use any abilities during this time. This is Reaper's main method of escape.If you suddenly find yourself surrounded by enemies, activate Wraith Form and make a break for the safest location you can find. Offensively, it can also be used to chase down enemies due to the speed increase. When timed properly, Reaper can avoid potentially deadly attacks with this ability, such as Roadhog's Chain Hook, Reinhardt's Charge, or Cassidy's Flashbang.Try to anticipate your enemy's attacks and use Wraith Form before they hit. Using Wraith Form will remove Zenyatta's Orb Of Discord as well as Tracer's Pulse Bomb.It will also remove the effect of Ana's Biotic Grenade and Widowmaker's Venom Mine.
