(I know it's several months after her release but I wanted to discuss her, and for some reason there wasn't a thread lol)
STAR SHINE (Light Diamond Annie)"How about a little sunshine to brighten up your day?"
The palette is a reference to Star Butterfly from Star VS The Forces Of Evil.
The quote is a reference to Sonic R "Can you feel the sunshine? Does it brighten up your day?"
SIGNATURE ABILITY: Butterfly Effect
SA1: Gain IMMUNITY and BLESSING every 30/25/20 seconds after facing the same opponent. Both effects are removed if the opponent TAGS OUT or dies.
SA2: Gain permanent PRECISION after 60/45/30 seconds as the active fighter. PRECISION is removed when TAGGING OUT.
Star Shine is potentially one of the most valuable offense units for Rift Battles in my opinion. I cannot stress enough how incredibly powerful permanent Precision is as a tool to bring down most of the defenders on the vast majority of the meta defenders, such as Immoral Fiber and Plot Twisted to name a few. Couple that fact with special moves such as Re-Entry, that grants Enrage if the last hit is a crit, and Destruction Pillar, which deals additional damage also on crit, and the output is some very heavy damage outputs.
Being an attacker, she desires Attack, Piercing and Meter Gain. Special Cooldown and Crit Damage are very recommended so you can increase the frequency of the use of Destruction Pillars and the total damage output from Precision hits. She shares stats with that of Risky Ginger, leaving her with a total of 11.8k base Atk and 71.1k base HP at max level and max skill tree investment. Therefore, she can deal good damage while being able to take a few hits, plus the bonus of self recovery with Sagan Beam.
Of course walking around with that much power would naturally prove itself OP, that's why the 30 second mark was implemented, so that it wasn't an instant win button. Moreover, you'll have to stick with her for either the entire fight or at least a significant part of it, which would have to predominate the early and mid match. And while Hex doesn't stop her from getting the permanent Precision, Curse most certainly will; on that end I advise to be as careful as possible should you carry her on a Rift node that has Curse of Knowledge in it and requires a Precision user.
One move I think should also be a fit on Star Shine is a Tag-Out. For one it helps out to keep the least desirable match-ups on the back while trying to force the most desirable one (i.e. tag out a front runner Dread Locks and hope Last Hope is the one to come out next), but also she has great synergy with Sketchy. Back to the Curse of Knowledge argument, good timing of tag-out usage can naturally prevent the opponent from gaining any buff itself. She can alternatively use the Immunity from tagging in to prevent Curse for a few seconds. [Here's a display of the tag-out dynamic.]
You may have noticed I haven't mentioned the SA1 a whole lot, and only focused on the permanent Precision. That's because to be honest it's not very good. While the buffs themselves aren't bad, they will only be present depending on the opponent's presence in the field (and also your own). So if you go for a tag-out heavy gameplay, you won't see too much of it in action. Not to mention if the enemy dies they also get removed. It's really only a small life saver in case the battle dragged for long enough and you screwed up midway. Nevertheless, given the large amount of applications of the SA2, I don't think the SA1 needs to be that outstanding.
In conclusion, if you manage to get your hands on Star Shine (as soon as she gets released next patch let's hope) be sure to invest in her. She can easily go against the vast majority of the meta with good skill and strategizing.