Conjure Giant Crab

You summon a giant crab, which appears in an unoccupied space that you can see within range.  The crab disappears when it drops to 0 hit points or when the spell ends.

The crab is friendly to you and your companions for the duration.  Roll initiative for the crab, 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 crab, it defends itself from hostile creatures but otherwise takes no actions.

The DM has the giant crab's statistics. 

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, you summon 1 additional giant crab for each slot level above 1st.