Uncontrollable screaming tier
Snalygaster, flatwoods monster,Manananggal, la gegua, Rokurokubi, nuckelavee
Non negotiable tier
Ammonite, Trilobite, Mi-Go, starfish, cockroach, Gashadokuro, Scallop, Humbaba, The Ningen,
Depends on how they are handled in design and personality tier
Mushussu,Orthrus, hydra,Mokele-mbembe,Hodag
Good Idea tier
Chupacabra, Phoenix, Camazotz, most dinosaurs