Watch Your Step

Watch Your Step is an in  of Diablo III, within the Holy Sanctum in Gardens of Hope Tier 2 or 3.

Inside, the Nephalem will find the huge square gap in the grand hall. Periodically, flashing platforms appear in the middle of the void space. If character steps onto a platform before it vanishes, it will become solid, stay there permanently, and summon 3 Armored Destroyers. By stepping on more and more platforms, players may reach the far corner. If a Destroyer steps on a tile the player has yet to step on that vanishes, they are stuck in place, hovering over the pit until the floor tile returns.

On the far corner platform, there are two, with a chance of one of them being Resplendent Chest. As soon as players step onto the target platform, Xolotl will spawn. Killing him will end the event, rewarding gold and experience.