I made a video guide about ALL Chaos Easter Eggs (Dead of the Night, Voyage of Despair, IX and Ancient Evil) and in this video I show you some general tips & tricks and low round easter egg strategies for all four of the EE's using Classic Elixirs Only. This video is 16 minutes long and contains 4 EE's. In the video I say it's more likely a what to do on what round guide than a deeply explained video since I already have videos about most of the EE steps. Of course you can do each of them on a lower round if you use common, rare, legendary or epic elixirs and talismans, but I wanted to make this reachable for those who don't have these items ingame so I used classic elixirs only.
With my strategies I completed:
Dead of the Night - Boss fight reached on Round 10 (finished on Round 12, flawless)
Voyage of Despair - Finished on Round 15, flawless
IX - Boss fight reached on Round 20 (finished on Round 21, flawless)
Ancient Evil - Boss fight reached on Round 10 (finished on Round 19, flawless)