Class

Rogues are considered as an passive “steal” class paired up with the Thief, the active counterpart. Rogues are known to steal things to share them with other allies, whereas Thieves basically just steals things and keeps them mostly to themselves. I see Rogues as people who mostly hides behind a façade that is rather caring and loving, however deep inside they may feel sadness, though they at some point may end up telling it for others. Take for example Roxy, the Rogue of Void. She mostly appears as a very happy and responsive person and she was also very caring for her friends, for example in the situation where everyone seemed to dislike Jake, Roxy still decided to help him and made him stop thinking those thoughts. Though Roxy was a really good and caring friend, she did have her problems, where her addiction for alcohol was one of the greatest. Though it didn’t seem like something big, it actually ended up becoming a problem, and yet Roxy managed to fix it just like that. As Dirk described it in a pesterlog with Jane:

TT: She saw she had an addiction. And then decided to fucking fix it. Just like that.

TT: She’s probably stronger than the other three of us put together.
Aspect

Life players are known to have the ability to heal others, which is shown in several panels in Homestuck. Feferi, the Witch of Life, have been known to heal Wayward Vagabond with the help of her Life powers, and also The Condesce had the ability to prolong others’ life, whereas her pre-Scratch self, Meenah, is known to be the Thief of Life. Life players are also known to be very lively and happy people, which can be seen in Jane, Feferi and yes, it can also be shown in even Meenah sometimes.

Title

The Rogue of Life would be very likely to stay back in a normal session, absorbing Life from enemies for the benefit of their teammates, and they would also spend much time healing others, as healing is basically one of the main specialities in the Life aspect.  The Rogue of Life would not be very much different from the Thief of Life, as the most notable difference between a Rogue and Thief is mostly that the Rogue only steals to share with allies, as was stated earlier in the “Class” section. Having a Rogue of Life in a session would normally be very beneficial for other teammates, as they may would have a tendency to sacrifice a lot of things for allies, and they would generally also make great partners.