Speaking of which? What WOULD be his help lines?

“The enemy is focusing their malice on me.”

“Friends, help me to overcome this hardship.”

“Pain is challenging me. I will endure.”

Lucio:

“Getting kinda hot in here, guys.”

“Yo, you guys still with me?”

“Playing now: Not-feeling-so-good inc.”

Moira:

“Critics everywhere…”

“If you want to stay healthy you should see to keeping me healthy as well.”

“Ignorance is getting into the way of my work yet again…”

Ana:

“Help requested.”

“Cover me!”

“I am under attack!”

Like this, perhaps?