Flooded Cavern · Round 13 unique boss · Dragons
fc7_vol_art.Monstrous levels (natural Hit Dice) + PRC Stormlord 9; boss flags BOSS, CLEAR, LOOPS, TYPE 26, USED 0, and R13_UNIQUE. The Epic Mummy Dust capstone is delivered by the dedicated round hook after the visual telegraph, exactly like every real Epic Spell in this bestiary since round 1.
One blueprint only. The Bestiary Caller uses the normal BC_Spawn contract, while the reserved Sparky case maintains a 12% always-on, count-one encounter definition, capped at one live spawn per area.