User blog comment:Rjwstar/MGQ world`s various untold informations - Torotoro blog Q&A/@comment-26228098-20160115214727/@comment-893816-20160117202038

In regards to the discrepancies about the Great Monster War and Alice attacking Illias, I thought that was made pretty clear. It was demonstrated that while angels are normally immune to everything but holy energy, any factor that can neutralize/counteract holy light can remove this advantage and render them vulnerable to conventional strikes, and correct me if I'm wrong, but there is no greater counteracting force to holy light than darkness. During the War, Alice I likely used her command over darkness to establish an enviornment similar to the holy seal implemented by the Heavenly Knights that would allow the monsters to fight the angels on equal terms. When Alice recounts punching Illias, she states that she had infused the punch with darkness energy; a being as powerful as the Monster Lord would likely be able to muster up enough darkenss to counteract Illias' holy power enough to allow the blow to connect, at the very least.