Oathbreaker is gaining in popularity among casual Magic: The Gathering players and, as such, the format is playable on Magic: The Gathering Online.

Ryan Spain of Daybreak Games joins Magic Untapped to talk about playing Oathbreaker on MTGO, which is available as part of the online PC game's Freeform Commander options.

"The bottom line is it's the freeform concept, but there's a command zone that you can put any two cards into," explains Spain.

Interview: Daybreak Games' Ryan Spain talks with Magic Untapped about Oathbreaker on Magic: The Gathering Online

He does point out, however, that playing Oathbreaker on Magic Online isn't exactly as convenient as playing other formats such as draft, Legacy, or Modern.  For one, Magic Online does not have a rules layer for Oathbreaker, meaning that the game software will allow you to cast your deck's signature spell even if your oathbreaker planeswalker is not on the battlefield -- something that's a "no no" in the format.

"[If] both players understand the format, you don't cast it," says Spain.  "Just because you can -- the game will let you -- but that's where you just have to know the house rules of your format."

"As long as all players involved abide by the house rules that are established...you'll get an authentic Oathbreaker experience," he continues.

To learn more about Oathbreaker on Magic: The Gathering Online as well as freeform commander overall, visit the MTGO website.