The concept is quite similar in Constructed formats, but following the advice of MTG player and mathematician Frank Karsten, the optimal range for adding another color to your deck in a 60-card format is approximately 12 to 13 sources of mana per color
While the point of this set is largely to capture the feel of Pokmon GO , it is also very much a Mewtwo set
Its a static ability of creatures with deathtouch, so it doesn't do anything
If such a creature dies, the counter is removed from play." This mechanic would later become a two-part process of first removing counters and then creating tokens, but I think it's more evocative to imagine these counters "animating" into creatures of their own
I expect this green creature to do a lot of trading and not much else
A popular variant also uses to create a resilient and explosive threat by exiling powerful creatures from the graveyard and granting their abilities to its own creatures