Some tactics involved
One of the major influences for Ahnkahet is Naxxramas since cheap Metin2 Yang Naxxramas was a section pulled out of Azjol-Nerub. A lot of emphasis was placed again on lore, scale, and how custom the enemies and combat will be.
At this point the audience was again treated with a live action video of the instance in its current beta form. The first boss will hatch eggs that cause the fight to be very different from others. You will have to deal with the eggs the boss hatches or you will quickly be overrun. You can not just AoE them down either meaning there will be some tactics involved.