Voltaic Key [Urza's Saga] Set_Eternal Masters Set: Portal Three Kingdoms Type:

Set: Portal Three Kingdoms Type: Creature — Human Advisor Rarity: Uncommon Cost: {2}{U} When Council of Advisors enters the battlefield

Activate only if you control six or more artifacts

Set: Legends Type: Sorcery Rarity: Uncommon Cost: {R} Each player shuffles the cards from their hand into their library

that player adds

In Catan: Cities & Knights you engage in the defense of Catan and compete to build the three great metropolises of Catan

Voltaic Key [Urza's Saga] Set_Eternal Masters Set: Portal Three Kingdoms Type:Set: Urza's Saga Type: Artifact Rarity: Uncommon Cost: {1} {1}, {T}: Untap target artifact. The key did not work on a single lock, yet it opened many doors.