Here for my PCs reference.
1st level Transmutation
Casting Time: 1 action
Components: V, S
Duration: 1 hour
Class: druid, ranger, mechromancer
You choose a target, that creatures natural attacks (bite, claw, fists etc) become magic weapons for the duration. Magic fang can be made permanent with a permanency spell.
At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, you can affect one additional target and the duration doubles for each slot level above 1st.