I recently discovered this while in Cruxible, I was playing Torchbearer while my teammate was Erebus. Our enemies were Rook and Sedna, a pushing force to be dealt with. We were playing a towers game and I was having an extremely hard time making it to the other side while Erebus was doing fine.

What is it exactly? It's either capturing a flag or placing a ward down. enabling the weaker players to teleport to that location.

Who should do it? Prefferably the most mobile/strong player on the team. A strong rook could just run in and place it really quick while it's probably safest to let Erebus teleport using his bat swarm skill.

Step 1: buy a ward

Step 2: place the ward

Step 3: Teleport

I know this isn't groundbreaking by any means but used in conjunction with Erebus "backdooring" it can turn the tide quickly. If you have any other teleporting related suggestions I would place them here.