The Oracle Think Tank (better known as OTT by fans) is a clan that on Cray, serves as advisers to the Royal Paladins, using magic to predict the future. An ability they use to it's fullest in battle, a user of OTT relies on logic and knowing what comes next instead of luck, as well as hand size and drawing, giving them many defense possibilities. However, there isn't much they can do against strategies that can bypass this

Notable users

Misaki Tokura in seasons 1 and 2 and the G series 

Yuri Usui in season 2

Kumi Okazaki in the G series

Tsuneto Tado in the G series