Upgrade 2 The next card I'm cutting is a Swamp
Number 315 Language English Legal Formats Commander, Legacy, Modern, Vintage Not Legal Formats Alchemy, Brawl, Competitive Brawl, Historic, Pauper, Pioneer, Standard, Timeless Rulings (10/1/2007) The second ability checks how many creatures have been exiled with Colfenor's Urn over the course of the entire game
Its also honestly a must-have in mono-black decks and decks that run a lot of Swamps
There are five basic lands, each associated with a color
(3) If this Ritual Summoned card in its owners control is sent to the GY by an opponents card (either by battle or card effect, or by being destroyed): You can Special Summon 1 Summoned Skull from your hand, Deck, or GY.