"Oracle Think Tank" (オラクルシンクタンク Orakuru Shinku Tanku) is a clan from the United Sanctuarynation, and one of the first four clans in the game. The clan is themed around a magical business conglomerate. Many of their services involve fortune telling, security, and magical studies.
Oracle Think Tank, in the initial release of the game, is focused around several effects that allow you to draw cards, as well as being able to manipulate the top card of the deck, making it easier to hit triggers.
Oracle Think Tank is also the only clan currently in the game that can run 5 Heal Triggers if you use Lozenge Magus as your starting Vanguard.