Underground Labyrinth · Stage 7Underground B7F地底7層20Energy Cost1,128XP Reward200,000Enemy Base HP4,700Stage Length20Max Enemies7.2Difficulty Test your team vs this stageStage rewards50% — XP ×100,000 · Treasure RadarEnemy spawns (2)EnemyStrengthCountFirst SpawnRespawnBase HP TriggerNotesHeavenly Hippoe200%613.3s26.7s~30s100%—Metal Hippoe100%226.7s30s~33.3s100%—All Underground Labyrinth: The Grand Deep stages