Studying magic theory has taught you a ritual which allows you to summon a minor creature from beyond the mortal realm to aid your cause.
Benefit: By performing an hour-long ritual, you can summon a single creature of the outsider type whose CR is 3 or less. This creature obeys your commands to the best of its ability. The creature returns to its home plane after 1 hour or when it is slain, whichever comes first. To complete the ritual, you must expend 50 gp in material components and must also sacrifice some of your own blood, which causes you to suffer 1d6 points of bleed damage for at least 1d4+2 rounds. You may never summon more than one creature a day with this ability