mtg cards like utopia sprawl Showcase - WOC its controller adds an additional one mana of the chosen color. MtG Dissension Common Utopia Sprawl

It shows up in a lot of other decks, my favorite of which is a surprise guest appearance in Wilhelt, the Rotcleaver decks

Stoneforge Mystic

Even without either of these cards, however, Hollowhenge Overloards doubling effect can easily take over games if not dealt with

Another way you will be draining your opponents is by damaging them for 1 life for each creature that enters the battlefield

Also, consider the size of the cabinet itself and whether it will fit in the space where you plan to store it

It offers a full wheel with graveyards and hands shuffling into the deck for just 3 mana, but the caveat is that it ends your turn on resolution