For instance, if this is the fifth spell cast this turn and you control no other Oozes, you get a 2/2 token, a 3/3 token, a 4/4 token, a 5/5 token, and a legendary 6/6.

I was wondering why my preferred templating wasn't used. Obviously Crow Storm (Create a 1/2 blue bird with flying. Storm) wouldn't work here. My preferred is "When Aeve enters the battlefield, create a N/N token for each spell cast this turn." But that wouldn't work here.

Not sure I like it from a rules perspective.