mtg booster box war of the spark and Gideon Jura—against Bolas and his relentless army of Eternals Magic The Gathering MTG BD-EN

There are eight in total: Venusaur ex (shiny super rare) Exeggutor ex (shiny super rare) Blastoise ex (shiny super rare) Starmie ex (shiny super rare) Gengar ex (shiny super rare) Machamp ex (shiny super rare) Marowak ex (shiny super rare) Wigglytuff ex (shiny super rare) These are all the crown rare cards in Celestial Guardians

thats what banned lists are for

It wants to hold mana open to stop others from winning the game, then if that fails to materialize, instead burn threats and/or faces at the end of turn

While you can trade Underground Sea for Watery Grave and hardly notice the difference, you are going to feel the difference when you top deck a Magus of the Wheel rather than a Wheel of Fortune when you really need to refill your hand, and you'll feel it a lot