Shade
Monster Junkie
I think magical beast should be fine.
Let's figure out ability scores:
"Semi-intelligent", taken literally, is Int 2-4.
Ape (L): Str 21, Dex 15, Con 14, Int 2, Wis 12, Cha 7
Girallon (L): Str 22, Dex 17, Con 14, Int 2, Wis 12, Cha 7
Legendary Ape (M): Str 30, Dex 17, Con 16, Int 2, Wis 17, Cha 11
Let's figure out ability scores:
"Semi-intelligent", taken literally, is Int 2-4.
Ape (L): Str 21, Dex 15, Con 14, Int 2, Wis 12, Cha 7
Girallon (L): Str 22, Dex 17, Con 14, Int 2, Wis 12, Cha 7
Legendary Ape (M): Str 30, Dex 17, Con 16, Int 2, Wis 17, Cha 11