She can either serve as mana ramp, creature removal, or, if you save up for her ultimate ability, you can deal 5 damage to any target every time you cast a spell, which is bound to win you the game quickly
For this card to truly be good, you need to be willing to pay in both life and creatures
Ive even seen people build Magic decks that evoke other stories (think Lord of the Rings themed decks) by running cards that act as references to things from those properties
But even accounting for bad timing, it's still the case that TCGs are rapidly getting more expensive
Verify seller reputation and request close-up photos
The reason it carries on hanging in the main cube despite being a bit of a cut below the rest is because of the value and rarity of putting cards from hand to library