To fight the Magister, level 115 Slayer is required (which can be boosted - however, the boost must be maintained throughout the whole fight) and a Key to the Crossing. The soul obelisk inside the dungeon must then be activated to summon him. Keys can be obtained by killing the inhabitants of the dungeon (including himself) or by buying them from the Grand Exchange, costing . The key is consumed when beginning the fight and will not be returned on death if the Magister wins, behaving in a similar manner to ascension keystones. Killing the Magister is a possible Soul Reaper assignment.