Pairing this with the Captain America, Team Leader ability could lead to a seriously stacked board sooner rather than later, so expect to be an easy target for other players at the table.
The artwork is absolutely stunning and you can really see the incorporation of the unification Lara timeline here
Typically, a card that allows you to use a sticker gives you a resource called tickets, which functions similarly to energy from Kaladesh
The power of this card is unquestionable
You can copy all sorts of value creatures with this Boros commander (Dockside Extortionist comes to mind), and copying a blink creature should net you infinite combos
Like most Pokmon cards, the value of Leavanny depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (White Flare)