Conjure elemental armada

You summon elemental  spirits that take the form of humanoids and appear in unoccupied spaces that you can see within range. Choose one of the following options for what appears:

• One elemental of challenge rating 2 or lower
• Two elementals of challenge rating 1 or lower
• Four elementals  of challenge rating 1/2 or lower
• Eight elementals of challenge rating 1/4 or lower

The summoned elementals are friendly to you and your companions. Roll initiative for the summoned creatures as a group, which has its own turns. They obey any verbal commands that you issue to them (no action required by you). If you don't issue any commands to them, they defend themselves from hostile creatures, but otherwise take no actions.

At Higher Levels. When you cast this spell using certain higher-level spell slots, you can move the challenge rating of the list up by one rating per higher slot. When making saving throws for concentration you may add the level slot used to to cast this spell to your concentration total.