Conjure Blood Servant

You call forth a blood servant. You cast the blood into an unoccupied 10-foot cube adjacent to you. An elemental or ooze with the blood subtype of challenge rating 5 or lower appears in the unoccupied space. The servant disappears when it drops to 0 hit points or when the spell ends.

The summoned creature is friendly to you and your companions for the duration. Roll initiative for the servant, which has its own turns. It obeys any verbal commands that you issue to it (no action required by you). If you don't issue any commands to the servant, it defends itself from hostile creatures but otherwise take no actions.

If your concentration is broken, the servant doesn't disappear. Instead, you lose control of the summoned creature, it becomes hostile toward you and your companions, and it might attack. An uncontrolled servant can't be dismissed by you, and it disappears 1 hour after you summoned it, as do any spawn it may have created.

The DM has the servant's statistics.

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the challenge rating increases by 1 for each slot level above 5th.