Making Rin the Main DPS with Faster-Than-Light Promotion | Currency Wars

I got Light Speed Promotion as my first investment strategy, which randomly promotes a 1-Cost unit to 4-Star. So, I decided to try a Rin run and build a team around her as the main damage dealer for the final boss. Rin ended up dealing a surprisingly good amount of damage, but unfortunately, a few misplays cost me the run. #HonkaiStarRail #CurrencyWars #Rin #HSR