Then, and this is the main thing, Whenever Kroxa enters the battlefield or attacks, each opponent discards a card, then each opponent who didnt discard a nonland card this way loses 3 life. Kroxa is a bit odd, but theyre an all-rounder for discard decks
Goro-Goro, Disciple of Ryusei Goro-Goro, Disciple of Ryusei makes for a somewhat lousy commander but an excellent member of your 99ers, and a great example of the token generators that can create big, mean creature token dragons that your opponents would rather not have to deal with
I dont expect a fully-dedicated Equipment list to break out, of course, but we could see a modified version of Mono-Red Mice try a few of them out
However, if you are running a discard deck, you can get away with discarding it without opening up the option for them to draw it
Both of these are fun, and theyre an interesting combination for sure