I've been using this list for a few years and it does fine with my friends and casuals. I love that it's fluffy and the theme is just taking as much fire as possible. I love infantry and transports, so it's everything I love. I'm super happy in those regards.

However, I watched the WTC matches and I'm not sure how I would do. If I wanted to "upgrade" my list so I could participate in an event like that, what should I be looking at?
There was one sisters player at the event who had a cool list, it was 30 sacresancts with hospitaliers, 2 castigators, and a canis rex. I really like the idea of painting a titan/knight the same colors as the sisters, as a sort of shrine-guard knight clan ally, there's some cool fluff you could work with.