Spent like 10+ pots running Leviathan HL, and I must say that the design of this battle is flaw. The chance of passing it without death is low (especially with pubs). The sub boss, aka the mirror/shield/barrier, when OD, will cast a buff called 'Resonance' on Leviathan's body upon ougi. When the buff (see blue icon in the picture) is up, if not dispelled, Leviathan will cast Tidal Wave NEXT TURN. The wave will only hit one player, and the icon will disappear. When the next player triggers mirror's ougi, the buff will come back again on the main body. The only way to survive the fight, is to have 6-10 guildies, take turns to trigger ougi and clear the buff one by one. Raid members must be very careful with the OD phase. What should you do? 1. MUST ask everyone to STOP attacking, when you're triggering the mirror's ougi during OD phase. 2. After the buff is triggered, dispel it; OR ask someone to dispel it; OR ask someone to tank it. 3. E...