I'm not seeing much else you can do to swing games in your favor, but please correct me if I'm wrong
Beyond boosters look like the more realistic purchase for those who are trying to collect some of the new cards but dont necessarily care about all the fancy foils, Booster Fun treatments, and so on
If you cast a card "without paying its mana cost," such as with suspend, you can't choose to cast it for any alternative costs
Since all your creatures are now two-for-ones, you can very quickly establish an army on the battlefield after only a few spells
While it had a massive peak at $12, the card has since come down to a price point somewhere between $7 and $8
Like the other commanders from 2017s Commander release, Edgar comes with an incredibly powerful eminence ability, one that helps establish an incredibly powerful board state very quickly