To Be a Master is an achievement that requires the player to complete the Slayer Codex.


  • The achievement name is a reference to the Pokémon franchise, and is taken from the lyrics of Believe in Me, the theme tune of the fifth Pokémon anime series.
  • Before an update on 10 September 2018, this achievement had 75 RuneScore.
Community content is available under CC-BY-SA unless otherwise noted.