Aeve, Progenitor Ooze

A copy of a spell can be countered like any other spell, but it must be countered individually. Countering a spell with storm won't affect the copies.

The copies are put directly onto the stack. They aren't cast and won't be counted by other spells with storm cast later in the turn.

The storm copies enter the battlefield one by one, followed by the original spell. Each of them enters the battlefield with a number of +1/+1 counters equal to the number of Oozes you control as it enters the battlefield. If you don't control any Oozes at the start, the first one enters with no counters, the second one enters with one counter, and so on.