Imagine the situation, are you a random standart DPS that cant wipe DOT, a Mercy and another standart DPS, all of you got hitted by the DOT, the Mercy tries her best to keep both of you safe, but she can only keep one in full health, Ashe manages to hit the Mercy once. Guess what will happen? She will kill the Mercy because she cant heal herself and one of you will mostly end up with low health, probably around 50 HP, the other around 150 HP. Thats not cool and remenber that the DOT can be damage boosted.
For me any targeted healing should stop DOT:
- Ana: Primary, Biotic granade and Nanoboost.
- Baptiste: Secondary.
- Brigitte: Armor pack.
- Lúcio: Amp it up.
- Mercy: Primary.
- Moira: Primary and Coalescence.
- Zenyatta: Harmony orb.