Roon of the Hidden Realm
Legendary Creature — Rhino Soldier
Vigilance, trample
, 
: Exile another target creature. Return that card to the battlefield under its owner's control at the beginning of the next end step.
"Time and space are just new battlefields to be mastered."
Steve Prescott
The List (PLST)
• #CMA-190Rulings
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.
(wotc • 2013-10-17)
Rulings
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.
(wotc • 2013-10-17)