Vincent [Emissaries of Light]

When Vincent enters the field, choose & Backup. As long as Vincent is on the field, it does nor activate during its controller's Active Phase,
Chaos Saber S: Until the end of the turn, Vincent gains +2000 power, "Vincent cannot be chosen by your opponent's Summons or abilities." and "If Vincent is dealt damage by a Summon or an ability, the damage becomes 0 instead."