rey is extremely useful for doing high damage in raids, events, other battles and as a wildcard in GW. while i rarely see her any more in top 100 teams on my ultra competitive year-old shard she can still be useful in arena. she's fast and hits hard out of the box. in all honesty though with the power of droid teams i'd call it a toss up between her and jawa engineer, but the latter is less dynamic.