Key to the City [Commander 2019] Human Rogue Mercenary Set: Modern Masters 2015 Type:

Set: Modern Masters 2015 Type: Tribal Sorcery — Eldrazi Rarity: Rare Cost: {7} Each player sacrifices all permanents they control that are one or more colors

Set: Coldsnap Type: Creature — Human Assassin Rarity: Rare Cost: {B}{B}{B} Sacrifice Garza's Assassin: Destroy target nonblack creature

the inhabitants of the Ivory Tower reward those who sacrifice power for knowledge

Set: Urza's Saga Type: Enchantment Rarity: Rare Cost: {3}{G}{G} At the beginning of your upkeep

Key to the City [Commander 2019] Human Rogue Mercenary Set: Modern Masters 2015 Type:Set: Commander 2019 Type: Artifact Rarity: Rare Cost: {2} {T}, Discard a card: Up to one target creature can't be blocked this turn. Whenever Key to the City becomes untapped, you may pay {2}. If you do, draw a card. It would be unfortunate if the key fell into the wrong hands.