Whenever you roll a 4 or higher, create a 3/3 colorless Robot artifact creature token. If you rolled 6 or higher, instead create that token and a Treasure token.
, : Roll a six-sided die plus an additional six-sided die for each mana from Treasures spent to activate this ability.
Mr. House turns Treasures into dice rolls, snowballing into a board of 3/3 Robots and more Treasures. Spend early Treasures on his ability to roll multiple d6s at once, generating tokens and ramp, then convert that wide board into lethal damage or feed an Aristocrats/combo engine. He rewards stacking dice-roll payoffs and Treasure production around the table.
Treasure synergy doubles as ramp, fixing, and fuel for explosive multi-die activations
Generates a wide, resilient artifact board that supports go-wide, sacrifice, and artifact-matters strategies
Mardu colors give access to premium removal, board wipes, and recursion
Self-contained engine: the commander alone makes tokens and Treasures without other pieces
Activation is mana-hungry ( plus needing Treasures to roll well) and slow without setup
Heavy reliance on the commander makes you vulnerable to repeated removal and tax effects
Variance in dice rolls can produce dud turns when rolling few dice
Treasure and token strategies fold to artifact hate and mass removal
Legendary Artifact Creature — Human
, 
: Roll a six-sided die plus an additional six-sided die for each mana from Treasures spent to activate this ability.