This isn't a complaint, but the memorial sleeve seems like an odd choice. People would use, say, a Sheldon Menery memorial sleeve because they know who he was. But Arena team members are generally not public figures. Fewer people will use this sleeve because there isn't that connection or context. I feel like a different kind of commemoration might have been more fitting, although I admit I don't know what else I'd suggest. A free thematic event, maybe?

This week's Midweek Magic is Brawl where your commander has to be from Duskmourn. Some of those commanders are questionable choices. You can use Altanak but you can't do the Say Its Name thing, and you'd have to go to some trouble to use its discard ability. You can use Kaito but not its ninjutsu ability.* Again, I'm not complaining, I just think it's odd.

* What do you think the chances are that ninjutsu will one day receive errata to be usable from the command zone? Affected creatures would be Higure, Ink-Eyes, Nashi, and maybe Yuriko.