"Time and space are just new battlefields to be mastered."

Roon of the Hidden Realm

Vigilance, trample
{2}, {T}: Exile another target creature. Return that card to the battlefield under its owner's control at the beginning of the next end step.

Double Masters 2022

The List

Commander Anthology

Commander 2013 Oversized

If Roon of the Hidden Realm's ability targets a commander, that card's owner may choose to have it go to the command zone after it is exiled. If they do, it will not be returned to the battlefield at the beginning of the next end step.