Noble Egg

Noble eggs are a Type "Mischievous" Easter egg, their anomalous properties to Dream Game servers are detrimental and should not be activated or pursued without knowing what you're doing and what's going to happen. The last known Easter egg of this type appeared in the now removed dream "Shiverfrost", where the egg was hidden under some parts. Although no Anomalous Mischievous Event (AME) was reported from any players during the time of the egg's existence (because of how weak and small it is), it could've very well caused a catastrophic event under the right conditions at the right time.

So far no other eggs of this type have been reported nor will ever appear. (at least for a long while)