Strength Through Passion (Health Recovery) Galactic Challenge Feat

"Eweff;c-2218504" wrote:
To be honest I have more trouble with getting three kills at once

Have a couple AoE characters and slow play it until Carth has used the event ability a bunch of times and all his allies have a max hp of 1, then AoE, then chip away at a Carth with GL-level health and protection.

It's basically the opposite of getting the sith healing feat since you want to kill Carth as fast as possible to prevent him from using the event ability.