In exchange for exiling a land, players can gain extra mana from lands with the same name
For some, they're an investment in the future, with ever-increasing card values having allowed a handful of collectors to make an absolute killing over the past few years
Power Struggle Enchantment During each players upkeep that player exchanges control of random target artifact, creature or land he or she controls, for control of random target permanent of the same type that a random opponent controls
This Pokemon also has a Move that has you revealing Energy in your hand

So let's do that: Emrakul, the Aeons Torn +$0.225 Karn Liberated +$0.475 Kozilek, Butcher of Truth +$0.231 Ulamog, the Infinite Gyre +$0.168 Snapcaster Mage +$0.394 Temporal Manipulation +$0.406 Bitterblossom +$0.25 Demonic Tutor +$0.35 Goryo's Vengeance +$0.55 Liliana of the Veil +$0.51 Mikaeus, the Unhallowed +$0.175 Reanimate +$0.262 Tasigur, the Golden Fang +$0.02 Balefire Dragon +$0.08 Through the Breach +$0.538 Life from the Loam +$0.255 Noble Hierarch +$0.925 Tarmogoyf +$0.391 Vengevine +$0.225 Gaddock Teeg +$0.577 Leovold, Emissary of Trest +$0.13 Lord of Extinction +$0.09 Maelstrom Pulse +$0.246 Sigarda, Host of Herons +$0.05 Fulminator Mage +$0.112 Engineered Explosives +$1.02 Mana Vault +$0.125 Platinum Emperion +$0.088 Ancient Tomb +$0.45 Cavern of Souls +$0.435 Celestial Colonnade +$0.65 Creeping Tar Pit +$0.175 Dark Depths +$0.238 Karakas +$0.375 Lavaclaw Reaches +$0.03 Raging Ravine +$0.15 Stirring Wildwood +$0.01 Urborg, Tomb of Yawgmoth +$0.262 Total: $11.656 (These prices are based off of TCGPlayer Market, and will likely be out of date within an hour of my lookup

this attack does 30times the number of heads