I think white might be a slightly better color for this, since you have access to Elesh Norn, Mother of Machines
Tarkir: Dragonstorm Spoilers March 19 | New Surrak, Legendary Combo Enchantment and Jeskai Precon Tarkir: Dragonstorm Spoilers March 20 | New Zurgo, Mythic Reanimation Spell and Mardu Precon
You can then easily dump your infinite mana into your X spell or mana sink of choice (Comet Storm, Staff of Domination, etc.) to win the game or lock down the board
Ancient Bronze Dragon ( F, MC ) - A 6 mana 7/7 that pumps two of your creatures when it deals combat damage
There are of course cards that buck this trend and are successful on both ends of the spectrum, most recently Golos, Tireless Pilgrim and Niv-Mizzet Reborn, but for the most part this has been true throughout Magic 's history
Final Thoughts That's a wrap planeswalkers