Does mercy make people weak in a fight?

They're not. Build is not an indicator of a person's power or strength; that is down to individual capabilities. I've levelled with people much bigger than me, but also lost to someone quite some smaller than me. read more

Mercy’s strengths including a 2 second cool-down skill that allows you to fly fast to any ally dead or alive in sight allowing you for the heal stream or the epic resurrection party, one of the only heroes to be able to switch weapons on the fly. read more

If the accused is a repeat offender, then there is a low possibility of mercy when a sentence is being passed. So that can be one reason people show less mercy. In the social scene, I'd take it that this is between two individuals. By lack of mercy, I'd take it that you mean, less flexible with letting little offences slide. read more

The Caduceus Blaster will automatically reload while Mercy has the Caduceus Staff equipped. Do not underestimate the Caduceus Blaster. While fairly weak at long ranges due to the ease at which the projectiles can be dodged, the Caduceus Blaster can be deadly at close ranges, especially if you headshot with the bolts. read more