Mordenkainen's Defense Against Nonmagical Reptiles and Amphibians (Abjuration)

Level: 3
Range: Touch
Duration: 5 rounds/level
Components: V, S, M
Casting Time: 3 segments
Saving Throw: None
Area of Effect: Creature touched

A creature protected by this
spell gains an advantage in combat with nonmagical reptiles
or amphibians, including snakes, dinosaurs, frogs,
and giant-sized species of such animals. Dragons are
excluded from the spell’s effect as well as other creatures
with unnatural abilities. All such animals have a - 2 penalty
to hit the protected creature, and the creature gains a
+4 bonus to saving throws versus reptile or amphibian
venom.

MC: A bit of snake skin
and a dried frog‘s leg
placed in a pouch of hardened leather.