The Crystal Lake is a building which passively grants experience to monsters inside the building. Up to a maximum of 4 monsters can be placed in this building, with each one gaining 150XP/hour. Monsters in this building cannot be stored in the Monster Storage, although they can be powered-up or evolved.
To put a monster in Crystal Lake, press and hold on a monster, then drag it onto the structure. If a green arrow pointing downwards appear, it means that the building has vacancy and monsters can be dropped in it. If a red arrow pointing downwards appear, it means that the building is full. Alternatively, monsters can also be selected by highlighting the building and then placing the monster from the list. It is recommended that players lock the monsters in this building to prevent them from being used.
|Main Buildings||Summoner's Tower • Summonhenge • Gateway • Power-Up Circle • Arcane Tower • Magic Shop • Temple of Wishes • Transmogrification Building • Fuse Center • Fusion Hexagram • Monster Storage • Craft Building|
|Glory Buildings||Sanctum of Energy • Fairy Tree • Mana Fountain • Mysterious Plant • Crystal Rock • Guardstone • Water Sanctuary • Fire Sanctuary • Wind Sanctuary • Light Sanctuary • Dark Sanctuary • Ancient Sword • Crystal Altar • Sky Tribe Totem • Arcane Booster Tower • Fallen Ancient Guardian|
|Experience Buildings||Tranquil Forest • Crystal Lake • Gusty Cliffs • Practice Battle Field|
|Mana Stone Buildings||Ancient Stones • Pond of Mana • Deep Forest Ent|
|Crystal Buildings||Crystal Mine • Crystal Titan • Crystal Dragon|
|Flags||Flag of Rage • Flag of Hope • Flag of Will • Flag of Battle|