Although that set up does look obtainable in Black-Green decks
It does fairly clearly reference MTG lotuses in its flavor text, however, so its a pretty direct tie to them
And because of that, the realm of MTG Arena pack codes comes with its own set of rules and limits
Theyre generally written [Cost]: [Effect]. Some keyword abilities are activated abilities (such as cycling) and will have colons in their reminder text
To show how efficient this card is for the right deck, the final versions of Miracle Grow, which were dubbed Super Grow, used Mystic Enforcer as a finisher, since by the time you'd get around to casting it you had an all but guaranteed 6/6 flyer for four mana
Add to that any extra cards your opponents draw and youre likely to get a lot of good cards to choose from, even if it dies relatively quickly