Building a deck around her could go just about any way, from your typical Group Hug strategy, to mill, to general Storm, or even the route of aggro
Finishing Blow does 60, plus 160 more if the opposing Active Pokmon already has damage counters on it
Heliod, Sun-Crowned Heliod, Sun-Crowned is an easy way to grant lifelink to other creatures since you just need to pay for each instance
All your previous battles have trained you for this: now you can really test your skills in a new mode where each victory gets you closer to serious bragging rightsranked matches
There are many derivative cards, and even though there shouldn't be that many, it's taken for granted that it's vanilla
Both decks are good fun to play, but in very different fashions