Did Eden 4 with my friend which was his first time - he's a Tank.

On our 3rd run he stood in the wrong place and was going to die, so I rescued him and saved his life.

"Why'd you rescue me for??"
"Because you were standing on the wrong side derp face"
"oh .... Thanks"

Allow rescue and it's on a 2min cooldown. Just be glad that it cannot be used outside of combat.