It is good in that it works fairly well with most of the ways you can go about doing this from Oath to Reanimate and co to Sneak Attack, Show and Tell and even Flash
This is understandably confusing considering the Saproling token art makes them look like animated versions of various twigs, branches, bushes, trees, shrubs, roots, and, of course, fungi
That is what serious collectors notice over time, even if they do not see the back-end system
But sets like Modern Horizons 2 afford us the ability to make very strange cards that might seem out of place in normal sets or might require a deeper level of rules knowledge to grasp
All Sliver decks want it, but until the advent of Sliver Swarm, only Magic players that could afford to could have it replace Winged Sliver in their Sliver Deck (or more likely fly alongside the lesser Winged Sliver)
It depicts a stylized Pok Ball with circular arrows, symbolizing movement and exchange