In the MMO RPG "Realm of the Mad God", what dungeon is widely considered to be the most difficult?

The Shatters dungeon is widely considered to be the most difficult in the MMO RPG realm of the Mad God due to its complex and unforgiving mechanics. This dungeon presents players with challenging enemies and dangerous traps, requiring precise coordination and strategy from a group of skilled players in order to navigate and defeat its formidable bosses. The Shatters also has multiple phases, each one more difficult than the last, making it a tremendous test of skill and teamwork.