The ultimate skill of one of the original fallen angels. It counters the enemy, and annihilates them. It seems to be compatible with the power of water...
Daystar is one of Luka’s most powerful techniques, behind Ninefold Rakshasa and Quadruple Giga. a dazzling star, striking three times with heavy damage, each one as powerful as Heavenly Demon Revival. He can only use this while in his holy energy state, and is seen sealing Nanabi with this skill.
In Chapter 3, after Luka finally awakens his angelic powers against Archangel Ranael, Daystar replaces Serene Demon Sword, has a 8 SP cost, and is compatible with Undine.