Gandalf the White will double such cards' triggered abilities based on entering or leaving the battlefield, which can generate tremendous advantage in the right decks
While theres been a bit of an ebb and flow, at this point, Im comfortable saying this Standard format has a single best deck/deck to beat. G/W Tokens has won most major Standard tournaments, including the Pro Tour and the last three Grand Prix events
It is one of the most thematic starter decks on the list, and it's still fairly beginner-friendly
Certain "bite" cards can typically see some amount of play, depending on their speed and their cost
You can look forward to Borderless, Frame Break, and Borderless Profile cards in this booster box, although the new cards are exclusive to the pre-built Commander Decks