She's watching you!

Hexproof, Indestructible.
You can only play She's watching you when you control Erispheria.Your opponent(s)
plays with their hand visible for any player(s).
{t}: Choose 1 card from any opponent's hand.
Keep that card forever.
{r/w}: Target player buys you a booster box of your choice.
"Bai, Bai.." Erispheria.