Once aggroed it will use Reinforcements every 12 seconds to summon a monster. Summon types are based on the floor in Bhaflau Remnants where the Dormant Rampart was found.
Once the Rampart begins to summon, it will slowly start to lose HP. The rate at which it loses HP is about 1% HP per summon.
Up to 5 summons can be spawned at a time. The Rampart will continue to lose HP and use Reinforcements while all 5 summons are spawned, but no new monsters will be summoned when it uses Reinforcements.