That Time I Got Reincarnated As A Mimic

You summon fey spirits that take the form of beasts and appear in unoccupied spaces that you can see within range. Choose one of the following options for what appears: one beast of challenge rating 2 or lower, two beasts of challenge rating 1 or lower, four beasts of challenge rating 1/2 or lower, or eight beasts of challenge rating 1/4 or lower.