Season 2019 Missions

So, I'm unranked trash. I'm a casual player and really only play ARAM and even then, I lose almost all of the games I play on ARAM. (Lol.) I'm a big fan of the missions, though. One of the "Season 2019" Missions (Unity) asks for me to play 2-3 ranked games. How can I go about completing the mission? I suppose that I'm trying to avoid getting dragged for being trash. Lmao. (Also, I'm assuming that "2 games with a pre-made of any size" means ranked.)