Call Companion

When your familiar, steed (gained from the spell find steed), or animal companion (gained from a class feature)is under threat you can call them to you.  If your familiar, steed, or animal companion suffers damage you may cast this spell as a reaction if they are in range, reducing the damage the target creature  suffers by half, reducing the target creature’s to hit points to 1 if the attack would have reduced it to 0 hit points, and teleporting the familiar or animal companion so it is adjacent to you.