MTG >Combos >Herrería del clan Krark +Recuperador myr +Arrastrero de chatarra +Cofre de maná +

all pieces in play tap and sacrifice Mana Vault you gain 5 mana sacrifice Myr Retriever and Scrap Trawler add 4 manas use the 2 trigger's of the myr to return Scrap Trawler and Mana Vault use the trigger of Scrap Trawler to return the myr pay 6 manas and put all pieces in play again to repeat