Hero evolution stones
Water Evolution Stone Rift
Use Water Evolution Stone runs to advance a chosen Water hero without diluting the farm.
Adventure > Rift > Evolution Stone Dungeon; choose Water.
Repeat or sweep the Water stage with available Coffee while your selected Water hero needs stones. Farming can continue, but a hero’s evolution steps are limited.
Stop after the selected hero reaches the planned evolution step. Switch to another element, Awakening, or a different upgrade source if that is now the limiting material.
Open a guide to find other locations and see what the item is used for.
Use Water Evolution Stone runs to advance a chosen Water hero without diluting the farm.