Before & After
A one mana dork that will have you asking your opponents if they'll pay the four
Elvish Mystic Remora
A Thassa's Oracle combo piece that will lose you the game if you don't pay five on your next upkeep
Tainted Pact of Negation
A land you can't the game with on the field that makes your tribal creatures uncounterable
Gemstone Cavern of Souls
A land that makes all lands swamps that lets you play cards from your graveyard for a turn
Urborg, Tomb of Yawgmoth's Will
A three mana edh mana rock that makes it harder to attack you the more enchantments you control
Commander's Sphere of Safety