Westvale Abbey is a land that allows you to pay life to Create tokens, but also sacrifice five Creatures to transform it and untap it, at which point it becomes a truly terrifying Demon
1 Vivi Ornitier Gives You Free Mana Each Turn Vivi Has An Ability That's Free To Activate And Gives You Mana Vivi Ornitier will quickly snowball into a powerful threat , and it can do so early in the game thanks to its low casting cost
The eight prowess creatures and Eidolon of the Great Revel allow you to get under most opponents while having the burn and staying power that Chandra Dress to Kill and Bonecrusher Giant provide
The One Ring is a key artifact from Tolkiens world of Middle-earth and an all-powerful unique item
It is getting extra value from having them tapped by getting Treasure tokens
I guess if youre floating infinite mana you get to stack your deck the way you like it and just keep activating the look at and shuffle ability until you find what you want, though Im sure there are less convoluted ways of turning your infinite mana into a game win