Talia is kinda important for darkside missions, so investing in her is not a mistake. However, talia turns out to be rather mediocre it pvp. She really only shines when you fully upgrade her passive, basic and heal abilities, but even then, she will be outdone by Ashoka. Talias true worth comes from her turn manipulation, where her team heal grants the entire team turn gain, and additional turn gain for her. This way, talia can actually take 2 turns in a row in some cases, allowing her to basic attack to recover some of her lost health, and speeding up your whole team in general. If you are focusing one target, and you do not bring that target to the point where the ai triggers healers to heal (switch targets to keep your intended target at this threshold) then when its talias turn, you use her heal (even if no one on your team is injured) then it is likely that your team will all get a purst to their turn meter enough to take out your intended target before it is healed. Thats talias role.
