one piece booster box 6 [Chinese] Endless Treasures from Germa 66 SEALED LOT Of Bandai TCG

You dont want more than a few 5+ mana cards, but I think Ill always be happy with the first and possibly the second one of these

Sorin, Imperious Bloodlord Once the lord of Orzhov Vampires prior to the 2019 Standard rotation, Sorin has maintained his value via the Commander format

Only exiling your opponents graveyards gives this excellent egg tons of utility in graveyard-centric decks and it cycles if you dont need the graveyard hate

For a card that only costs three mana, you can't ask for much more

Of course, I've mentioned how it's an ok EphemerateEphemerate target, but it's not a primary one, so you might end up having to choose between flickering a card with a good triggered ability and trying to cushion the huge mana investment