This card can go near-infinite with Pixie Guide off a good roll, outright killing the table
Some Standard decks have like 10 or more basics, and against those decks, blowing up lands isn't especially meaningful
Another note Ill make here is that most of the time when you create a token that is a copy of something that isnt a token, or cast a copied spell that would become a permanent, or copy a permanent with a cloning effect, it retains its mana value of the thing it is copying when it enters
But it won't have gone alone
This offers up way more interesting gameplay and forces players to think about and evaluate battlefield states, leading to fewer instances of players just plopping their cards on the table and saying I win. Seven mana made me sit up, but then I saw that its ten power worth of creatures and it plays right into the coven mechanic, like Trostanis Summoner and Bestial Menace do