I figured it out guys. Since other Phoenix takes on entire teams, they clearly come from the Smurf dimension. They can't invade as a team since riot would notice and ban them so they attack the Low Elo world in 1v5 games. Change my mind.

Is it just me or is killjoy’s turret the most annoying little shit ever, the thing is so hard to kill sometimes, and does a surprising amount of chip damage