Though planeswalkers can't be used as a deck's commander unless specified, Battle For Baldurs Gate is designed around the Commander format, and so each of these new planeswalkers are viable commanders
The Through the Omenpaths Bonus Sheet (OMB) is a Brawl-, Timeless-, and Historic-legal set, and individual cards are also legal where already available in other formats
These gleaming wonders have earned a special place in alternative investments, offering financial rewards and nostalgic bliss
But that's just the Spear of Leonidas
You can open packs every day to get cards
Brawl Legal Vintage Legal Timeless Legal Commander Legal Pauper Not Legal Oathbreaker Legal Penny Legal Toolbox Notes and Rules Information for Gimli, Mournful Avenger: Gimli, Mournful Avenger doesn't need to have been on the battlefield when creatures died under your control for the first ability to count them