Most of the Oath of the Gatewatch cards in the deck are in the sideboard, as each has a pretty specific purpose: Goblin Dark-Dwellers for grindy matchups
Map the Wastes is a good touch
Wizards would need to be careful not to make the Tribble too good though - Mark Rosewater considers Scute Swarm a design mistake, and this could easily go the same way
It's just -3, and it's incredibly easy to abuse on the third turn
And Standard sees more play on Magic: The Gathering Arena every day than individual games in any other format. WotC's first step for revitalizing tabletop Standard is the new rotation cadence: sets now rotate out every three years rather than every two years
Ragavan, Nimble Pilferer Ragavan, Nimble Pilferer looks at Alpha, which printed Savannah Lions at rare because of how powerful a 1-mana 2/1 was, and laughs