Aegis-heavy midrange built around Realize Your Potential. Highroll is an uncontested Yojimba (either early against control or late against unit-based decks), or Momentum Builder+Potential. The contract units can also bootstrap momentum engines.
Defiance, and silenced Yojimbas, are the main protection against aggro.
Nostrix blocks the largest units, carries Realize your Potential well, and if triggered means you don't need any setup for future Momentum Builders.
Svetya's Decree is mostly used for power but can turn a D'Angolo might or greedy Plunk into an advantage for you. Orene's Scepter hardly ever ults but provides an extra layer of protection, and usually lets Yojimba get at least one undistupted swing.