Boss's Chauffeur enters the battlefield with a number of +1/+1 counters on it equal to one plus the number of other creatures you control.

Alliance — Whenever another creature enters the battlefield under your control, put a +1/+1 counter on Boss's Chauffeur.

When Boss's Chauffeur dies, create a 1/1 green and white Citizen creature token for each +1/+1 counter on it.

Flying, haste

When Dissatisfied Customer enters the battlefield, roll a six-sided die. If the result is 3 or less, you lose that much life.

When Gray Merchant of Alphabet enters the battlefield, choose a letter. For each creature you control that has the chosen letter in its name, you gain 1 life and each opponent loses 1 life.