3rd-Level Conjuration
A shimmering, spectral snake encircles your body for the duration. You gain 15 Temporary Hit Points; the spell ends early if you have no Temporary Hit Points left.
While the spell is active, you gain the following benefits:
You gain a Climb Speed equal to your Speed.
As a Magic action, you can make a ranged spell attack using the snake against one creature within 50 feet. On a hit, the target takes 1d6 Force damage and has the Poisoned condition until the start of your next turn. While Poisoned, the target has the Incapacitated condition.
For each spell slot level above 3, the number of Temporary Hit Points you gain from this spell increases by 5, and the damage of Venomous Bite increases by 1d6.
FRHoF, p. 147