2021-06-18 : As the last ability resolves, the enchanted creature is put into its owner's library. After it resolves, Shattered Ego is put into the graveyard from the battlefield.

2021-06-18 : If the enchanted creature's owner has two or fewer cards in their library, the enchanted creature is put on the bottom of their library as the last ability resolves.

2021-06-18 : The creature will be put into its owner's library even if Shattered Ego is no longer attached to it as the ability resolves.