The Initiative // Undercity - Inverted (Foil)

Whenever one or more creatures a player controls deal combat damage to you, that player takes the initiative. Whenever you take the initiative and at the beginning of your upkeep, venture into Undercity. (If you're in a dungeon, advance to the next room. If you're not, enter Undercity. You can take the initiative even if you already have it.)