You can remove all your opponents small creatures while leaving your larger ones intact
In this case, it's 10,000 Needles, which will always hit you for a guaranteed 10,000 damage
Glorybringer zaps smaller creatures to bring in more 4/4s, and Balefire Dragon will often make you a token while leaving an opponent's board in shambles
That said, it's clear what this card is for - enabling land strategies that want specific cards on the battlefield but can't fetch them in more traditional ways, such as through actual fetchlands
Get at us when you figure out how to make him and Alice Growing Girl win on turn 6
Its additional cost can be mitigated by returning an already tapped land to your land, maybe even one that has an ETB trigger