one piece card game booster box japanese TCG: Adventure on Kami's Island (OP-15) 6 Leader cards One Piece Trading Card Game

Of course, Secret Lairs have had bonus cards for a while, but at first these were a fixed card everyone who bought the same lair was guaranteed to get, and not typically something super rare either

Where do we really want to use this spell

It also depends on how you build your maindeck

is a daunting mana cost that basically restricts this blue creature to mono-blue or 2-color decks, but recasting your best instants and sorceries extends the lead cards like Time Warp and Breach the Multiverse naturally provide

2 Mox Amber - Mythic Rare Schematic - $34.32 Taking the top slot for the most valuable cards from The Brothers War is Mox Amber, again, but this time as the Retro Artifact Frame version