Dockside Extortionist [Commander 2019] Urza's the player can activate mana

the player can activate mana abilities only if they're from lands that player controls and only if mana they produce is spent to activate other mana abilities of lands the player controls and/or to play that card

Set: Alpha Edition Type: Instant Rarity: Common Cost: {1}{W} Destroy target artifact or enchantment

His assistants calculate the amount of the tribute

Set: Magic Premiere Shop 2006 Type: Basic Land — Plains Rarity: Rare ({T}: Add {W}

Set: Unlimited Edition Type: Sorcery Rarity: Rare Cost: {1}{B}{B} Remove Demonic Attorney from your deck before playing if you're not playing for ante

Dockside Extortionist [Commander 2019] Urza's the player can activate manaSet: Commander 2019 Type: Creature Goblin Pirate Rarity: Rare Cost: {1}{R} When Dockside Extortionist enters the battlefield, create X Treasure tokens, where X is the number of artifacts and enchantments your opponents control. (Treasure tokens are artifacts with "{T}, Sacrifice this artifact: Add one mana of any color.") "A small price to keep such pretty things safe!"