Mystic Hat
Mystic Hat is an item for the Head slot that needs Magic level 55, picked by the game as recommended gear for Magic. 
Mystic Mage (combat level 60) drops it 2.0% of the time, so expect about 50 kills for one. It sells for 4,500 gp.
Compare all Head gear · see recommended gear
Obtained from
Monster drops — Mystic Mage — 2.0%
Related items
- Magic head upgrades: before it,
Wizard Hat (needs Magic 25); next, 
Air Mage Hat (needs Magic 60). - Also dropped by Mystic Mage:
Threeli's Attuned Shard, 
Chaos Rune, 
Big Bones, 
Death Rune, 
Mystic Staff, 
Mystic Robe Top, 
Mystic Robe Bottoms, 
Mystic Gloves.