Her main gimmick is that she collects villain cards, and tucks them. Her abilities and powers give her bonuses, when tucked cards match her enemy. She can also spend the stored cards to draw more.

It's a thematic way to represent her eidetic memory. But it does make her hero cards require a bit more tracking/mental upkeep. There's also a bit less synergy between her cards and generic cards: no other cards really reference tucked cards in a synergistic way.

Her resource generation is stronger than usual. Deft Focus applies to a lot of her cards. As a Genius, she has access to Ingenuity. And of course, she can trade tucked cards for draw in Alter Ego.

Her 15 can fit in a lot of different strategies, but is always going to be a bit independent of the other cards. I've used her in Leadership, with the usual Web of Life and Destiny package. I've used her in Protection. Her THW and ATK can get pretty high with her upgrades.

Overall, Silk is a fun pack. If you like the character, or like the idea of getting bonuses based on what you store, this is a recommendable purchase. Her ability to draw is also generically helpful.