The front side of the battle is by far the most important aspect of the card since we'll be getting it every single game as soon as the battle resolves
You could drop out a few nontoken Squirrels and add in Concordant Crossroads, Fauna Shaman, and the like so that you're hitting that Ivy Lane Denizen / Scurry Oak combo more often, or you're able to grab Enduring Vitality in nearly every game
Turns out you can Plague Wind the board at a lower cost while you still proliferate your modular creatures
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
Overall, I think this deck is an extraordinary introduction to the game
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