The Mimic/Strategies - OSRS Wiki

Upon completion of an elite or master clue scroll, the casket received has a chance of turning out to be a mimic chest. Mimic caskets can only be obtained from an elite or master reward casket after asking the strange casket to enable the chance to obtain a mimic casket (which is disabled by default).

Giant Mimic, RuneScape Wiki

How I kill the Mimic Boss

Treasure Trails/Full guide/Master - OSRS Wiki

Bow of faerdhinen - OSRS Wiki

Mimic Display - OSRS Wiki

OSRS' Treasure Trails Update: Mimic Boss Changes, Beginner Scroll Clues, Stackable Caskets and More

OSRS' Treasure Trails Update: Mimic Boss Changes, Beginner Scroll Clues, Stackable Caskets and More

New feature on OSRS Wiki: it can now automatically check off the music tracks you've unlocked : r/2007scape

Mimic - OSRS Wiki

Killing the Giant Mimic - The RuneScape Wiki

Armadyl crossbow - OSRS Wiki