Start Turn is the phase of the turn in which the offense checks to make sure his or her hand contains at least one encounter card. If it does not, the offense discards his or her hand and draws eight new cards. Unlike the other phases in an encounter, the start turn phase only happens once during a player's turn.

Phases of an encounter
Mayfair AnyPhase(Mayfair)GameSetup(Mayfair) Regroup(Mayfair)Destiny(Mayfair)Launch(Mayfair)Invitations(Mayfair)Alliance(Mayfair)Planning(Mayfair)Reveal(Mayfair)Discard(Mayfair)NextTurn(Mayfair)
CEO Any Phase Start TurnRegroupDestinyLaunchAlliancePlanningRevealResolution
FFG AnyPhase(FFG)(off)GameSetup(FFG)(off) StartTurn(FFG)(on)Regroup(FFG)(off)Destiny(FFG)(off)Launch(FFG)(off)Alliance(FFG)(off)Planning(FFG)(off)Reveal(FFG)(off)Resolution(FFG)(off)