Gaining the advantage over your enemy is one of the most important facets of winning a gun fight. Apex Legends players are always finding new ways to gain that advantage.
One of the best ways to gain an advantage takes place before your game even starts. That way is to properly choose your legends so they all work well together.
The two abilities are Ash's ultimate and Bangalore's tactical. Ash's Phase Breach ultimately opens a one-way portal for her and her teammates. Bangalore's Smoke Launcher tactical hides her and her teammates with a smoke grenade.
The trick to use with these two legends starts with Bangalore's smoke grenades. You and your teammates are hidden behind the smoke and that is when you use Ash's ultimate. Ash sends her portal behind the enemies, where they are facing the wrong way for easy elimination.
This trick can work almost anywhere on any of the maps but works most effectively inside. When inside, the smoke is contained in one area. The enemies are only looking for you from one area, the entrance. That's when the portal sends you right behind them.