I'm not crazy about the flying (although at least they're small) and I can do without cards making four+ token creatures with deathtouch, but at least I feel like we're moving in the right direction
A balanced mana curve (or ink curve in this case) might include a healthy number of low-cost cards (cost 1-3) for early game, a solid midrange (cost 4-5), and a few heavy hitters (6-8) for late game finishers
What's included in the machine price
You can cast it, create a 1/1 token, and return it to your hand for zero mana, allowing for an arbitrarily large army of Saprolings in a single turn
As an example, if your deck has a rotating switching card, you can probably find something with a similar effect
Deftblade Elite (3.981) Tribal: Soldier deck Provoke means: When this attacks, you may have target creature defending player controls untap and block it if able