Conlegret cards are part of a card game called "Conlegret". However while they do not present the opportunity of a minigame, they can be combined into complete card decks in the appropriate collections section using a Universal Sheath, which can be bought in the shops at the city squares, as collection activator.
Each deck consists of at least 1 rare card as well as several normal cards. The "Valuable card Idalle" is a special card that is part of several decks. While normal cards are rather cheap in their price on auction and exchange, the rare cards can be extremely expensive depending on which deck they belong to and its use.
Their price of rare cards varies between slightly over 100g to over 1000g, which is the reason why only a small part of the playerbase really uses card decks.
Completed card decks can be used once or more per week resetting from Sunday to Monday at 12am server time. Most card decks can be split up into several categories:
Summon decks: These decks summon a powerful creatue on your side in your current fight. The decks of this category are as following:
Chaos, Legacy of King Magish, Underground Knights, Exiles' Fortress, Snow Deck, Legendary Humans/Magmars 1/2/3, Great Mages and of sorts also the Mounts of Faeo (which is the only of this category that can be used more than once per week).
Buff Decks: card decks that grant your character a temporary buff. The decks of this category are as following:
Guardians of Truth
Battlefields
The Magical Flora/Rocks/Fish of Faeo
Military Ranks of Faeo I and II
Reputation decks: card decks that are directly linked to a lvl7+ reputation. The need a medal of worship of their reputation to be used and will grant access to a temporary banner once a week, which has a different effect depending on the reputation its connected to. Card decks are as following:
Zurkhass followers
Miuri Tao Diciples
Great Dragons
Goddess Aladeya
God of the Cursed and Dead
Water Nymph
Sylph Goddess
Boss Monster decks: card decks that allow you to fight a specific or random boss monster or superbeing. Decks of this category are:
Gnome runes
Super-beings
Eshu followers
The Seasonal deck: a deck that unlike all other decks doesnt contain a rare card. Instead each of its 12 cards can be obtained for tokens at the respective seasonal shop. It can also be used once a day instead of once a week, but only during the active stage of a seasonal event. When activated it will reward a small number of event tokens and a 1h buff which grants divination as well as another stat like for example speed.
The next deck to be released is most likely the Forbidden City deck, which will proabably be a high lvl summon deck.