CR 4
SRD 5.2.1 monsters with CR 4.
- Archelon — Huge · Beast
- Black Pudding — Large · Ooze
- Chuul — Large · Aberration
- Couatl — Medium · Celestial
- Elephant — Huge · Beast
- Ettin — Large · Giant
- Ghost — Medium · Undead
- Guard Captain — Medium · Humanoid
- Hippopotamus — Large · Beast
- Incubus — Medium · Fiend
- Lamia — Large · Fiend
- Red Dragon Wyrmling — Medium · Dragon
- Succubus — Medium · Fiend
- Tough Boss — Medium · Humanoid
- Wereboar — Medium · Monstrosity
- Weretiger — Medium · Monstrosity