Arcturus vs Heroic: Valiona & Theralion 25man

Heroic: Valiona and Theralion make up the second boss encounter in Bastion of Twilight. The two dragons seems to be brother and sister. It should be noted that this is the same Valiona that is encountered in Grim Batol, where she abandons Drahga Shadowburner, leaving him to die within the dungeon while she escapes. Valiona and Theralion share a HP pool, but threat is separate. They do not reset upon landing or taking Twilight Sentry will periodically spawn in the Twilight Realm and fir