Momentum is a single rope, pulled from both ends. It rides on one shared slider on the War Slate, starting at a central 0 and moving up to 2 spaces toward either player. It never sits still - the slider slides toward whoever is landing the blows. Press the attack and the slider comes your way: a Charge, a Flank, a won Melee Attack, a destroyed Enemy Unit, a won Tactical Formation, or a Muster. The slider moves at only one moment: right after an Action, Ability, Spell, Gambit, or Divine Will fully resolves, when the Gaining Momentum Procedure (GMP) counts what each player earned during it and...