In addition to basic monsters members of a coven can summon special monsters which are only available for covens. These monsters can be summoned by performing special rituals using Altars. You can open your coven altars through the 'Coven Monsters' category of the 'Monsters' page.
There are six different altars available in the game:
- Troll Cave - can be used to summon Mountain Trolls
- Mansion - can be used to summon Bloodlords
- Maze - can be used to summon Minotaur Captains
- Foul Pit - can be used to summon Poisonous Hydras
- Cliff - can be used to summon Sea Beasts
- Hell's Gates - can be used to summon Cerberi
To summon a monster players should donate a required amount of specific items at a specific place. There's no limitation how many items each player should donate, altars only count how many items were donated in total. To donate items you should click on the altar and choose how many items of each kind you'd like to donate.
Monsters appear from altars as soon as the required amount of items has been donated. Initial health of a monster varies according to number of players participating in the summon ritual. Every player who donated items automatically join the monster battle, the rest of the coven members are not able to join this specific monster.
After summoning a monster altar remains locked until the monster is defeated. The next summoning ritual can be performed 12 hours after defeat of the previously summoned monster.