This Apex Legends trick makes reviving downed teammates with Lifeline even easier and safer than normal.
Reviving teammates in Apex Legends is often a risky endeavor, as it opens the reviving player up to being pushed and ultimately eliminated. Playing as Lifeline can make the process a little smoother, as Lifeline is capable of leaving a drone to revive the downed teammate while she holds a defensive position.
But just because she doesn't need to actively revive the downed teammate doesn't mean Lifeline revives are free. It's still vital the downed teammate begin the reviving process in relative cover. This trick, demonstrated to the Apex University subreddit by u/herman-342, achieves that safety more quickly by melee attacking downed teammates.
As counterintuitive as that may seem, the teammate actually takes no damage from the attack, even as it pushes them a couple meters in the direction of the hit. This allows Lifeline to shepherd them to safety more quickly, and thus start the revive more quickly.
The trick can also be useful in trying to get a downed teammate back into the play area.