conjure imps

You summon three Imps, which appear in unoccupied spaces of your choice within range. 

A Imp summoned by this spell disappears when it drops to 0 hit points or when the spell ends.

The summoned creatures 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.

The GM has the creatures' statistics.

At Higher Levels.  When you cast this spell using a spell slot of 4th level or higher, you summon one additional Imp for each slot level above 3rd.