Dr. Sheya vs Halfus Wyrmbreaker 10 Normal
Glyphs: Siphon Life, Soul Shard & Demon Hunting.
IMPORTANT: Halfus is only doable if you don't have the Slate Dragon up (aka Halfus & MS), all other buffs are manageable.
Pull Halfus with the Imp to the stairs to the valion&theralion hallway (or if the netherscion isn't up then to the opposite direction) and release the netherscion OR the timewarden and instanly begin to cast Summon Voidlord. Your Voidlord should tank both of them and you should focus the dragon down. Don't forget to use Curse of Enfeeblement in p1 via soulburn. That's all.