Just that. Increase the projectile speed of her gun or buff the damage or something that encourages more than one playstyle. A battle mercy would give themercy the chance to fight more reliably and also would give the oponents the opportunity to get rid of her because she wouldn’t be running away all the time. Risk/Reward. I know its a hot take and you may say “there are other characters for that” but I like when each character can be played in different ways while being viable. On the downside a lot of mercys may ignore healing in order to be more aggressive.