Shes got an ability that sort of sounds like it could be a negative (you have to banish either her or two other characters of yours), but works incredibly well when you pair it with certain Merlin cards
This card can be rather slow, but if you can protect it or dump a bunch of counters on it quickly (Angelfire Ignition is one of my favorite cards for that), you have an aggressive nightmare for your opponents to deal with
We can also use Undying EvilUndying Evil and Not Dead After AllNot Dead After All, although those cards have the downside of returning our commanders to the battlefield split up
A card for Cecil from Final Fantasy IV allows him to transform from Dark Knight to Paladin as he does in the game, with borderless full-art versions for diehard collectors to hunt for
This makes it very easy to ramp her up to an incredibly high power which is dangerous for your opponents given she also has Lifelink which heals you for all damage she deals
Disney Lorcana is a collectible card game (CCG), which I find is often referred to as a trading card game (TCG)