How to get the achievement “Mimic”?

Question

This new achievement has been found recently but there is very few information about the exact number of chests that is needed for getting this achieve…

Answer 1

How to Unlock the "Mimic" Achievement

To unlock the "Mimic" achievement, you need to be bitten by a Mimic chest.

• Requirement:Obtainable by clicking 20 Mimics in Isle of Ada.

• Location: The Mimic chest only appears on the Isle of Ada.

• Spawn Mechanic: Its specific location on the island changes every day with the server save.
  
  it is also worth mentioning that the chest has a 20 hour cooldown so you could do 2 chest per server save 

Source: https://tibia.fandom.com/wiki/Mimic_(Achievement)