BB Slots will grant a Max HP Up by 10,000 buff on the front line party at the start of battle.
Click the link above for a guide on beating Suzuka Gozen.
Suzuka Gozen's Active buff:
SG "Possessiveness": Decrease Critical Stars by 10 each turn. (Cannot be removed)
After 1st Break:
SG "Worst Chef": Decrease HP of all enemies by 1000 HP each turn. (Cannot be removed)
After 2nd Break:
Summons Shadow Berserker Servant
SG "Servile Nature": Buff allies except herself with ATK Up (3 turns) at the end of each turn. (Cannot be removed)