Crystal (magic)

The Magic crystal is a type of lava crystal that spawns throughout the Fight Kiln minigame after completing waves 5, 17, and 29. It can only be used in this minigame and disappears after leaving. This crystal boosts a player's Magic level to and maintains it at 150% of its unboosted value while lowering their Ranged, Strength, and Defence levels to and maintaining them at 50% of their unboosted values for 3.5 minutes before running out.