Many monsters don't say anything. It's difficult to list them here, but maybe I will give an example.
Adventurer Adult Goanna Bug Carniphila Centipede
you can see all list here: https://tibia.fandom.com/wiki/Sounds
Interview with Benjamin Zuckerer - managing director at CipSoftMay 07, 2020
Improving posts is now rewarded with reputation pointsApril 11, 2020
Looking for a community managerJune 09, 2019