What creatures are included in Challenging Bestiary category, how many kills do we need to fully unlock them and how many charms we can get?

Question

There is a new difficulty in Bestiary, called Challenging.

1. What creatures are included in Challenging Bestiary category?
2. How many kills do we need to fully unlock them?
3. How many charms points can we get?

Answer 1

Challenging creatures require 200, 2000 and 5000 kills to unlock their information, and rewards 100  Charm Points when fully unlocked. This difficulty level was implemented with the Summer Update 2020.

Challenging creatures are:

• Bony Sea Devil
• Brachiodemon
• Branchy Crawler
• Cloak of Terror
• Courage Leech
• Infernal Demon
• Many Faces
• Capricious Phantom
• Distorted Phantom
• Infernal Phantom
• Mould Phantom
• Vibrant Phantom
• Turbulent Elemental
• Rotten Golem
• Knight's Apparition
• Druid's Apparition
• Paladin's Apparition
• Sorcerer's Apparition

Source: https://tibia.fandom.com/wiki/Bestiary/Difficulties#Hard_Creatures