Magic the gathering

If you had some more experience/knowledge regarding building a deck i'd have suggested you to play in a limited format like Sealed deck or Booster draft.
Would put both you and your sister on equal ground in regards to deck and it's a really fun format to play.

This makes me realize how much i miss playing MTG.


Edit: Or get good cunk of cards(360+ i think?), and play cube. But that'd also be a big investment.