Do not be so caught up in keeping track of time that you forget to make use of it.

Perpetual Timepiece

{T}: Mill two cards. (Put the top two cards of your library into your graveyard.)
{2}, Exile this artifact: Shuffle any number of target cards from your graveyard into your library.

{T}: Put the top two cards of your library into your graveyard.
{2}, Exile Perpetual Timepiece: Shuffle any number of target cards from your graveyard into your library.

Secrets of Strixhaven Commander

Outlaws of Thunder Junction Commander

{T}: Mill two cards.
{2}, Exile Perpetual Timepiece: Shuffle any number of target cards from your graveyard into your library.